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122102200121 = 11104291064359
BaseRepresentation
bin111000110110111011…
…0111011011100111001
3102200011111211102221012
41301231312323130321
54000031130400441
6132032025523305
711551543401506
oct1615566733471
9380144742835
10122102200121
11478685661a0
121b7b7943535
13b68b895775
145ca46064ad
1532998049eb
hex1c6ddbb739

122102200121 has 8 divisors (see below), whose sum is σ = 133215297600. Its totient is φ = 110991252240.

The previous prime is 122102200067. The next prime is 122102200127. The reversal of 122102200121 is 121002201221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-122102200121 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122102200096 and 122102200105.

It is not an unprimeable number, because it can be changed into a prime (122102200127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417461 + ... + 646898.

It is an arithmetic number, because the mean of its divisors is an integer number (16651912200).

Almost surely, 2122102200121 is an apocalyptic number.

122102200121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122102200121 is a deficient number, since it is larger than the sum of its proper divisors (11113097479).

122102200121 is a wasteful number, since it uses less digits than its factorization.

122102200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074799.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122102200121 its reverse (121002201221), we get a palindrome (243104401342).

It can be divided in two parts, 122102 and 200121, that added together give a palindrome (322223).

The spelling of 122102200121 in words is "one hundred twenty-two billion, one hundred two million, two hundred thousand, one hundred twenty-one".

Divisors: 1 11 10429 114719 1064359 11707949 11100200011 122102200121