121900970 has 16 divisors (see below), whose sum is σ = 219881088. Its totient is φ = 48658320.

The previous prime is 121900937. The next prime is 121900973. The reversal of 121900970 is 79009121.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121900973) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7646 + ... + 17385.

It is an arithmetic number, because the mean of its divisors is an integer number (13742568).

Almost surely, 2^121900970 is an apocalyptic number.

121900970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121900970 is a deficient number, since it is larger than the sum of its proper divisors (97980118).

121900970 is a wasteful number, since it uses less digits than its factorization.

121900970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25525.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 121900970 is about 11040.8772296408. The cubic root of 121900970 is about 495.8333342435.

The spelling of 121900970 in words is "one hundred twenty-one million, nine hundred thousand, nine hundred seventy".