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10222120992 = 253194347259
BaseRepresentation
bin10011000010100100…
…10011000000100000
3222101101201112211210
421201102103000200
5131413330332432
64410155310120
7511212411006
oct114122230040
928341645753
1010222120992
114376136886
121b9344b340
13c6ba1b405
146cd862a76
153ec6368cc
hex261493020

10222120992 has 288 divisors, whose sum is σ = 30030739200. Its totient is φ = 3033580032.

The previous prime is 10222120991. The next prime is 10222121053. The reversal of 10222120992 is 29902122201.

It is not an unprimeable number, because it can be changed into a prime (10222120991) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 173256259 + ... + 173256317.

It is an arithmetic number, because the mean of its divisors is an integer number (104273400).

Almost surely, 210222120992 is an apocalyptic number.

10222120992 is a gapful number since it is divisible by the number (12) 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 10222120992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15015369600).

10222120992 is an abundant number, since it is smaller than the sum of its proper divisors (19808618208).

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

10222120992 is a wasteful number, since it uses less digits than its factorization.

10222120992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 10222120992 in words is "ten billion, two hundred twenty-two million, one hundred twenty thousand, nine hundred ninety-two".