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102202112102201 = 157650968866893
BaseRepresentation
bin10111001111001111001000…
…100101100100111100111001
3111101212102111220201222021122
4113033033020211210330321
5101343434411144232301
61001211000243315025
730345600420154556
oct2717171045447471
9441772456658248
10102202112102201
112a623743972871
12b56755467ba75
1345048054639a7
141b3487409da2d
15bc37a137981b
hex5cf3c8964f39

102202112102201 has 4 divisors (see below), whose sum is σ = 102853080969252. Its totient is φ = 101551143235152.

The previous prime is 102202112102161. The next prime is 102202112102221. The reversal of 102202112102201 is 102201211202201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72680330876176 + 29521781226025 = 8525276^2 + 5433395^2 .

It is a cyclic number.

It is not a de Polignac number, because 102202112102201 - 26 = 102202112102137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102202112102201.

It is not an unprimeable number, because it can be changed into a prime (102202112102221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325484433290 + ... + 325484433603.

It is an arithmetic number, because the mean of its divisors is an integer number (25713270242313).

Almost surely, 2102202112102201 is an apocalyptic number.

It is an amenable number.

102202112102201 is a deficient number, since it is larger than the sum of its proper divisors (650968867051).

102202112102201 is an equidigital number, since it uses as much as digits as its factorization.

102202112102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650968867050.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102202112102201 its reverse (102201211202201), we get a palindrome (204403323304402).

The spelling of 102202112102201 in words is "one hundred two trillion, two hundred two billion, one hundred twelve million, one hundred two thousand, two hundred one".

Divisors: 1 157 650968866893 102202112102201