122100012222100 has 108 divisors (see below), whose sum is σ = 294117261907644. Its totient is φ = 43960400000000.

The previous prime is 122100012222061. The next prime is 122100012222109. The reversal of 122100012222100 is 1222210001221.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3382818491536 + 118717193730564 = 1839244^2 + 10895742^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100012222109) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 48732901 + ... + 51177100.

Almost surely, 2^{122100012222100} is an apocalyptic number.

122100012222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122100012222100 is an abundant number, since it is smaller than the sum of its proper divisors (172017249685544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122100012222100 is a wasteful number, since it uses less digits than its factorization.

122100012222100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99910138 (or 99910120 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122100012222100 its reverse (1222210001221), we get a palindrome (123322222223321).

The spelling of 122100012222100 in words is "one hundred twenty-two trillion, one hundred billion, twelve million, two hundred twenty-two thousand, one hundred".