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122022321031 = 139386332387
BaseRepresentation
bin111000110100100011…
…0001101101110000111
3102122221221112011102101
41301221012031232013
53444400203233111
6132020053452531
711546553421042
oct1615106155607
9378857464371
10122022321031
1147827467916
121b795041147
13b678178430
145c97b71c59
1532927c6bc1
hex1c6918db87

122022321031 has 4 divisors (see below), whose sum is σ = 131408653432. Its totient is φ = 112635988632.

The previous prime is 122022320983. The next prime is 122022321049. The reversal of 122022321031 is 130123220221.

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

It is a cyclic number.

It is not a de Polignac number, because 122022321031 - 217 = 122022189959 is a prime.

It is a super-2 number, since 2×1220223210312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122022321431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4693166181 + ... + 4693166206.

It is an arithmetic number, because the mean of its divisors is an integer number (32852163358).

Almost surely, 2122022321031 is an apocalyptic number.

122022321031 is a deficient number, since it is larger than the sum of its proper divisors (9386332401).

122022321031 is an equidigital number, since it uses as much as digits as its factorization.

122022321031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9386332400.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 122022321031 its reverse (130123220221), we get a palindrome (252145541252).

The spelling of 122022321031 in words is "one hundred twenty-two billion, twenty-two million, three hundred twenty-one thousand, thirty-one".

Divisors: 1 13 9386332387 122022321031