121225055670 has 48 divisors (see below), whose sum is σ = 315208249200. Its totient is φ = 32324311872.

The previous prime is 121225055669. The next prime is 121225055671. The reversal of 121225055670 is 76550522121.

121225055670 is a `hidden beast` number, since 1 + 2 + 12 + 25 + 0 + 556 + 70 = 666.

It is an interprime number because it is at equal distance from previous prime (121225055669) and next prime (121225055671).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121225055671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1430217 + ... + 1512603.

It is an arithmetic number, because the mean of its divisors is an integer number (6566838525).

Almost surely, 2^121225055670 is an apocalyptic number.

121225055670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121225055670 is an abundant number, since it is smaller than the sum of its proper divisors (193983193530).

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

121225055670 is a wasteful number, since it uses less digits than its factorization.

121225055670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98749 (or 98746 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

Adding to 121225055670 its reverse (76550522121), we get a palindrome (197775577791).

The spelling of 121225055670 in words is "one hundred twenty-one billion, two hundred twenty-five million, fifty-five thousand, six hundred seventy".