122221101100 has 36 divisors (see below), whose sum is σ = 303108332464. Its totient is φ = 41904377280.

The previous prime is 122221101049. The next prime is 122221101103. The reversal of 122221101100 is 1101122221.

It is not an unprimeable number, because it can be changed into a prime (122221101103) 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, 87300087 + ... + 87301486.

Almost surely, 2^122221101100 is an apocalyptic number.

122221101100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122221101100 is an abundant number, since it is smaller than the sum of its proper divisors (180887231364).

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

122221101100 is a wasteful number, since it uses less digits than its factorization.

122221101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174601594 (or 174601587 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122221101100 its reverse (1101122221), we get a palindrome (123322223321).

The spelling of 122221101100 in words is "one hundred twenty-two billion, two hundred twenty-one million, one hundred one thousand, one hundred".