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1202200220220 = 2235121611647617
BaseRepresentation
bin10001011111101000101…
…101111001001000111100
311020221002101210212201020
4101133220231321020330
5124144101224021340
62320141054544140
7152566433160156
oct21375055711074
94227071725636
101202200220220
1142393975710a
12174bb2508050
13894a039566c
1442288821ad6
1521412e4c9d0
hex117e8b7923c

1202200220220 has 48 divisors (see below), whose sum is σ = 3366439459488. Its totient is φ = 320560168960.

The previous prime is 1202200220213. The next prime is 1202200220279. The reversal of 1202200220220 is 220220022021.

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 1202200220220.

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, 94149 + ... + 1553468.

It is an arithmetic number, because the mean of its divisors is an integer number (70134155406).

Almost surely, 21202200220220 is an apocalyptic number.

1202200220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202200220220 is an abundant number, since it is smaller than the sum of its proper divisors (2164239239268).

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

1202200220220 is a wasteful number, since it uses less digits than its factorization.

1202200220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659790 (or 1659788 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 1202200220220 its reverse (220220022021), we get a palindrome (1422420242241).

The spelling of 1202200220220 in words is "one trillion, two hundred two billion, two hundred million, two hundred twenty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 12161 24322 36483 48644 60805 72966 121610 145932 182415 243220 364830 729660 1647617 3295234 4942851 6590468 8238085 9885702 16476170 19771404 24714255 32952340 49428510 98857020 20036670337 40073340674 60110011011 80146681348 100183351685 120220022022 200366703370 240440044044 300550055055 400733406740 601100110110 1202200220220