121422132100 has 18 divisors (see below), whose sum is σ = 263486026874. Its totient is φ = 48568852800.

The previous prime is 121422132071. The next prime is 121422132107. The reversal of 121422132100 is 1231224121.

It can be written as a sum of positive squares in 3 ways, for example, as 2325361284 + 119096770816 = 48222^2 + 345104^2 .

It is not an unprimeable number, because it can be changed into a prime (121422132107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 607110561 + ... + 607110760.

Almost surely, 2^121422132100 is an apocalyptic number.

121422132100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121422132100 is an abundant number, since it is smaller than the sum of its proper divisors (142063894774).

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

121422132100 is a wasteful number, since it uses less digits than its factorization.

121422132100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214221335 (or 1214221328 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121422132100 its reverse (1231224121), we get a palindrome (122653356221).

The spelling of 121422132100 in words is "one hundred twenty-one billion, four hundred twenty-two million, one hundred thirty-two thousand, one hundred".