121250870 has 32 divisors (see below), whose sum is σ = 236107872. Its totient is φ = 44566272.

The previous prime is 121250869. The next prime is 121250881. The reversal of 121250870 is 78052121.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 28289 + ... + 32291.

It is an arithmetic number, because the mean of its divisors is an integer number (7378371).

Almost surely, 2^121250870 is an apocalyptic number.

121250870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121250870 is a deficient number, since it is larger than the sum of its proper divisors (114857002).

121250870 is a wasteful number, since it uses less digits than its factorization.

121250870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4256.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 121250870 is about 11011.3972773668. The cubic root of 121250870 is about 494.9503334176.

The spelling of 121250870 in words is "one hundred twenty-one million, two hundred fifty thousand, eight hundred seventy".