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102201222001121 = 173590758508677
BaseRepresentation
bin10111001111001110010011…
…100010000111000111100001
3111101212100012212212011010222
4113033032103202013013201
5101343431100313013441
61001210332045332425
730345536361344645
oct2717162342070741
9441770185764128
10102201222001121
112a623327491741
12b567346567115
1345046c2c24b69
141b347cbb9cc25
15bc374d155d4b
hex5cf3938871e1

102201222001121 has 4 divisors (see below), whose sum is σ = 102791980509972. Its totient is φ = 101610463492272.

The previous prime is 102201222001037. The next prime is 102201222001129. The reversal of 102201222001121 is 121100222102201.

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 98005644048400 + 4195577952721 = 9899780^2 + 2048311^2 .

It is a cyclic number.

It is not a de Polignac number, because 102201222001121 - 214 = 102201221984737 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 102201222001121.

It is not an unprimeable number, because it can be changed into a prime (102201222001129) 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, 295379254166 + ... + 295379254511.

It is an arithmetic number, because the mean of its divisors is an integer number (25697995127493).

Almost surely, 2102201222001121 is an apocalyptic number.

It is an amenable number.

102201222001121 is a deficient number, since it is larger than the sum of its proper divisors (590758508851).

102201222001121 is an equidigital number, since it uses as much as digits as its factorization.

102201222001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590758508850.

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

Adding to 102201222001121 its reverse (121100222102201), we get a palindrome (223301444103322).

The spelling of 102201222001121 in words is "one hundred two trillion, two hundred one billion, two hundred twenty-two million, one thousand, one hundred twenty-one".

Divisors: 1 173 590758508677 102201222001121