121216970 has 32 divisors (see below), whose sum is σ = 264031488. Its totient is φ = 39115008.

The previous prime is 121216961. The next prime is 121216981. The reversal of 121216970 is 79612121.

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 15 ways as a sum of consecutive naturals, for example, 49742 + ... + 52121.

It is an arithmetic number, because the mean of its divisors is an integer number (8250984).

Almost surely, 2^121216970 is an apocalyptic number.

121216970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121216970 is an abundant number, since it is smaller than the sum of its proper divisors (142814518).

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

121216970 is a wasteful number, since it uses less digits than its factorization.

121216970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101894.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 121216970 is about 11009.8578555765. The cubic root of 121216970 is about 494.9042021191.

It can be divided in two parts, 12121 and 6970, that added together give a palindrome (19091).

The spelling of 121216970 in words is "one hundred twenty-one million, two hundred sixteen thousand, nine hundred seventy".