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122102123011 = 11231014778387
BaseRepresentation
bin111000110110111011…
…0101000101000000011
3102200011111200112011021
41301231312220220003
54000031120414021
6132032024130311
711551542630631
oct1615566505003
9380144615137
10122102123011
1147868513270
121b7b7906997
13b68b86963b
145ca45c6351
1532997dbc41
hex1c6dda8a03

122102123011 has 16 divisors (see below), whose sum is σ = 140369925888. Its totient is φ = 105124492000.

The previous prime is 122102122963. The next prime is 122102123029. The reversal of 122102123011 is 110321201221.

It is not a de Polignac number, because 122102123011 - 223 = 122093734403 is a prime.

It is a super-2 number, since 2×1221021230112 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122102123071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2363641 + ... + 2414746.

It is an arithmetic number, because the mean of its divisors is an integer number (8773120368).

Almost surely, 2122102123011 is an apocalyptic number.

122102123011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122102123011 is a deficient number, since it is larger than the sum of its proper divisors (18267802877).

122102123011 is a wasteful number, since it uses less digits than its factorization.

122102123011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4778522.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 122102123011 its reverse (110321201221), we get a palindrome (232423324232).

The spelling of 122102123011 in words is "one hundred twenty-two billion, one hundred two million, one hundred twenty-three thousand, eleven".

Divisors: 1 11 23 101 253 1111 2323 25553 4778387 52562257 109902901 482617087 1208931911 5308787957 11100193001 122102123011