121372070 has 16 divisors (see below), whose sum is σ = 218615760. Its totient is φ = 48516384.

The previous prime is 121372051. The next prime is 121372109. The reversal of 121372070 is 70273121.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16724 + ... + 22856.

It is an arithmetic number, because the mean of its divisors is an integer number (13663485).

Almost surely, 2^121372070 is an apocalyptic number.

121372070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121372070 is a deficient number, since it is larger than the sum of its proper divisors (97243690).

121372070 is a wasteful number, since it uses less digits than its factorization.

121372070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8119.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 121372070 is about 11016.8992915430. The cubic root of 121372070 is about 495.1151927265.

The spelling of 121372070 in words is "one hundred twenty-one million, three hundred seventy-two thousand, seventy".