121002021221160 has 64 divisors (see below), whose sum is σ = 363011955727680. Its totient is φ = 32266681920000.

The previous prime is 121002021221149. The next prime is 121002021221161. The reversal of 121002021221160 is 61122120200121.

It is not an unprimeable number, because it can be changed into a prime (121002021221161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 731341 + ... + 15573660.

It is an arithmetic number, because the mean of its divisors is an integer number (5672061808245).

Almost surely, 2^{121002021221160} is an apocalyptic number.

121002021221160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002021221160 is an abundant number, since it is smaller than the sum of its proper divisors (242009934506520).

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

121002021221160 is a wasteful number, since it uses less digits than its factorization.

121002021221160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16366858 (or 16366854 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 121002021221160 its reverse (61122120200121), we get a palindrome (182124141421281).

The spelling of 121002021221160 in words is "one hundred twenty-one trillion, two billion, twenty-one million, two hundred twenty-one thousand, one hundred sixty".