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102022220131 = 137847863087
BaseRepresentation
bin101111100000011111…
…1111000100101100011
3100202100002210202202121
41133000333320211203
53132420142021011
6114511322125111
710241130364006
oct1370077704543
9322302722677
10102022220131
113a2a397a007
1217933050797
13980b7668c0
144d1b86153d
1529c1a3ae71
hex17c0ff8963

102022220131 has 4 divisors (see below), whose sum is σ = 109870083232. Its totient is φ = 94174357032.

The previous prime is 102022220093. The next prime is 102022220143. The reversal of 102022220131 is 131022220201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131022220201 = 917031428767.

It is a cyclic number.

It is not a de Polignac number, because 102022220131 - 235 = 67662481763 is a prime.

It is a super-2 number, since 2×1020222201312 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102022220161) 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, 3923931531 + ... + 3923931556.

It is an arithmetic number, because the mean of its divisors is an integer number (27467520808).

Almost surely, 2102022220131 is an apocalyptic number.

102022220131 is a deficient number, since it is larger than the sum of its proper divisors (7847863101).

102022220131 is an equidigital number, since it uses as much as digits as its factorization.

102022220131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7847863100.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 102022220131 its reverse (131022220201), we get a palindrome (233044440332).

The spelling of 102022220131 in words is "one hundred two billion, twenty-two million, two hundred twenty thousand, one hundred thirty-one".

Divisors: 1 13 7847863087 102022220131