121620250700 has 36 divisors (see below), whose sum is σ = 284217173520. Its totient is φ = 44905938240.

The previous prime is 121620250691. The next prime is 121620250727. The reversal of 121620250700 is 7052026121.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 121620250700.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46775720 + ... + 46778319.

Almost surely, 2^121620250700 is an apocalyptic number.

121620250700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121620250700 is an abundant number, since it is smaller than the sum of its proper divisors (162596922820).

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

121620250700 is a wasteful number, since it uses less digits than its factorization.

121620250700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93554066 (or 93554059 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

Adding to 121620250700 its reverse (7052026121), we get a palindrome (128672276821).

The spelling of 121620250700 in words is "one hundred twenty-one billion, six hundred twenty million, two hundred fifty thousand, seven hundred".