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2111220120200 = 2352291516173907
BaseRepresentation
bin11110101110001110100…
…001100111101010001000
321110211102120010100121012
4132232032201213222020
5234042234322321300
64253514154103052
7305350000633202
oct36561641475210
97424376110535
102111220120200
117443aa79a2a4
122a120341aa88
1312411977b799
147427db1d772
1539db7287435
hex1eb8e867a88

2111220120200 has 192 divisors, whose sum is σ = 5121071337600. Its totient is φ = 808448256000.

The previous prime is 2111220120173. The next prime is 2111220120281. The reversal of 2111220120200 is 20210221112.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 540366647 + ... + 540370553.

It is an arithmetic number, because the mean of its divisors is an integer number (26672246550).

Almost surely, 22111220120200 is an apocalyptic number.

2111220120200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111220120200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2560535668800).

2111220120200 is an abundant number, since it is smaller than the sum of its proper divisors (3009851217400).

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

2111220120200 is a wasteful number, since it uses less digits than its factorization.

2111220120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4720 (or 4711 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2111220120200 its reverse (20210221112), we get a palindrome (2131430341312).

The spelling of 2111220120200 in words is "two trillion, one hundred eleven billion, two hundred twenty million, one hundred twenty thousand, two hundred".