122221212201100 has 72 divisors (see below), whose sum is σ = 266172484058208. Its totient is φ = 48712928678400.

The previous prime is 122221212201091. The next prime is 122221212201119. The reversal of 122221212201100 is 1102212122221.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1288702882 + ... + 1288797718.

It is an arithmetic number, because the mean of its divisors is an integer number (3696840056364).

Almost surely, 2^{122221212201100} is an apocalyptic number.

122221212201100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122221212201100 is an abundant number, since it is smaller than the sum of its proper divisors (143951271857108).

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

122221212201100 is a wasteful number, since it uses less digits than its factorization.

122221212201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140995 (or 140988 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122221212201100 its reverse (1102212122221), we get a palindrome (123323424323321).

The spelling of 122221212201100 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, two hundred twelve million, two hundred one thousand, one hundred".