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10221312210 = 235340710407
BaseRepresentation
bin10011000010011110…
…01101100011010010
3222101100012110101220
421201033031203102
5131413123442320
64410130105510
7511202502024
oct114117154322
928340173356
1010221312210
11437573416a
121b9311b296
13c6b7c7245
146cd6d2014
153ec526e40
hex2613cd8d2

10221312210 has 16 divisors (see below), whose sum is σ = 24531149376. Its totient is φ = 2725683248.

The previous prime is 10221312209. The next prime is 10221312253. The reversal of 10221312210 is 1221312201.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10221312210.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170355174 + ... + 170355233.

It is an arithmetic number, because the mean of its divisors is an integer number (1533196836).

Almost surely, 210221312210 is an apocalyptic number.

10221312210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10221312210 is an abundant number, since it is smaller than the sum of its proper divisors (14309837166).

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

10221312210 is a wasteful number, since it uses less digits than its factorization.

10221312210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340710417.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10221312210 its reverse (1221312201), we get a palindrome (11442624411).

Subtracting from 10221312210 its reverse (1221312201), we obtain a palindrome (9000000009).

The spelling of 10221312210 in words is "ten billion, two hundred twenty-one million, three hundred twelve thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 340710407 681420814 1022131221 1703552035 2044262442 3407104070 5110656105 10221312210