122222010012100 has 36 divisors (see below), whose sum is σ = 265225654701700. Its totient is φ = 48888086405760.

The previous prime is 122222010012079. The next prime is 122222010012103. The reversal of 122222010012100 is 1210010222221.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2238159618304 + 119983850393796 = 1496048^2 + 10953714^2 .

It is not an unprimeable number, because it can be changed into a prime (122222010012103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2096895 + ... + 15774694.

Almost surely, 2^{122222010012100} is an apocalyptic number.

122222010012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122222010012100 is an abundant number, since it is smaller than the sum of its proper divisors (143003644689600).

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

122222010012100 is a wasteful number, since it uses less digits than its factorization.

122222010012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17939992 (or 17939985 counting only the distinct ones).

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

Adding to 122222010012100 its reverse (1210010222221), we get a palindrome (123432020234321).

The spelling of 122222010012100 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, ten million, twelve thousand, one hundred".