122221101010100 has 36 divisors (see below), whose sum is σ = 266807931678624. Its totient is φ = 48595695245280.

The previous prime is 122221101010081. The next prime is 122221101010139. The reversal of 122221101010100 is 1010101122221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3659297702 + ... + 3659331101.

Almost surely, 2^{122221101010100} is an apocalyptic number.

122221101010100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122221101010100 is an abundant number, since it is smaller than the sum of its proper divisors (144586830668524).

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

122221101010100 is a wasteful number, since it uses less digits than its factorization.

122221101010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7318628984 (or 7318628977 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122221101010100 its reverse (1010101122221), we get a palindrome (123231202132321).

The spelling of 122221101010100 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, one hundred one million, ten thousand, one hundred".