121325506770 has 64 divisors (see below), whose sum is σ = 313695889920. Its totient is φ = 29853681408.

The previous prime is 121325506769. The next prime is 121325506781. The reversal of 121325506770 is 77605523121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1022916 + ... + 1135344.

It is an arithmetic number, because the mean of its divisors is an integer number (4901498280).

Almost surely, 2^121325506770 is an apocalyptic number.

121325506770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121325506770 is an abundant number, since it is smaller than the sum of its proper divisors (192370383150).

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

121325506770 is a wasteful number, since it uses less digits than its factorization.

121325506770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115219.

The product of its (nonzero) digits is 88200, while the sum is 39.

The spelling of 121325506770 in words is "one hundred twenty-one billion, three hundred twenty-five million, five hundred six thousand, seven hundred seventy".