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220021100110112 = 25717827334320899
BaseRepresentation
bin110010000001101110100111…
…100000111110000100100000
31001212000210220202200012211212
4302001232213200332010200
5212314311203112010422
62055540144212125252
764225666653325430
oct6201564740760440
91055023822605755
10220021100110112
116411847408a414
1220815691306828
13959cb92b39372
143c491142d42c0
151a683c15499e2
hexc81ba783e120

220021100110112 has 192 divisors, whose sum is σ = 524983837593600. Its totient is φ = 88609938149376.

The previous prime is 220021100110111. The next prime is 220021100110171. The reversal of 220021100110112 is 211011001120022.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (220021100110111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10527818639 + ... + 10527839537.

It is an arithmetic number, because the mean of its divisors is an integer number (2734290820800).

Almost surely, 2220021100110112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220021100110112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262491918796800).

220021100110112 is an abundant number, since it is smaller than the sum of its proper divisors (304962737483488).

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

220021100110112 is a wasteful number, since it uses less digits than its factorization.

220021100110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25103 (or 25095 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 220021100110112 its reverse (211011001120022), we get a palindrome (431032101230134).

The spelling of 220021100110112 in words is "two hundred twenty trillion, twenty-one billion, one hundred million, one hundred ten thousand, one hundred twelve".