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10020012212220 = 2235267217624961
BaseRepresentation
bin1001000111001111011101…
…0001001011111111111100
31022110220101212201222002120
42101303313101023333330
52303131441111242340
633151044032122540
72052631146343323
oct221636721137774
938426355658076
1010020012212220
11321351074428a
121159b41996450
13578b6321a90a
14268d84cb30ba
1512599bcc24d0
hex91cf744bffc

10020012212220 has 48 divisors (see below), whose sum is σ = 28056184080288. Its totient is φ = 2671988981760.

The previous prime is 10020012212213. The next prime is 10020012212251. The reversal of 10020012212220 is 2221221002001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10020012212220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15720540 + ... + 16345500.

It is an arithmetic number, because the mean of its divisors is an integer number (584503835006).

Almost surely, 210020012212220 is an apocalyptic number.

10020012212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10020012212220 is an abundant number, since it is smaller than the sum of its proper divisors (18036171868068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10020012212220 is a wasteful number, since it uses less digits than its factorization.

10020012212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892190 (or 892188 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10020012212220 its reverse (2221221002001), we get a palindrome (12241233214221).

The spelling of 10020012212220 in words is "ten trillion, twenty billion, twelve million, two hundred twelve thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 267217 534434 624961 801651 1068868 1249922 1336085 1603302 1874883 2499844 2672170 3124805 3206604 3749766 4008255 5344340 6249610 7499532 8016510 9374415 12499220 16033020 18748830 37497660 167000203537 334000407074 501000610611 668000814148 835001017685 1002001221222 1670002035370 2004002442444 2505003053055 3340004070740 5010006106110 10020012212220