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BaseRepresentation
bin10000000000101001001…
…010000001101111101100
310220011210222101122021220
4100000221022001233230
5121011203220402340
62201231553423340
7142326014511105
oct20005112015754
93804728348256
101100202122220
11394658463453
1215928756ab50
137c996926516
143b37027d3ac
151d9435c8ed0
hex10029281bec

1100202122220 has 48 divisors (see below), whose sum is σ = 3099012473088. Its totient is φ = 291630420160.

The previous prime is 1100202122203. The next prime is 1100202122267. The reversal of 1100202122220 is 222212020011.

Adding to 1100202122220 its reverse (222212020011), we get a palindrome (1322414142231).

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 1100202122220.

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, 54890286 + ... + 54910325.

It is an arithmetic number, because the mean of its divisors is an integer number (64562759856).

Almost surely, 21100202122220 is an apocalyptic number.

1100202122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100202122220 is an abundant number, since it is smaller than the sum of its proper divisors (1998810350868).

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

1100202122220 is a wasteful number, since it uses less digits than its factorization.

1100202122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109800790 (or 109800788 counting only the distinct ones).

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

The spelling of 1100202122220 in words is "one trillion, one hundred billion, two hundred two million, one hundred twenty-two thousand, two hundred twenty".