121202022001 has 16 divisors (see below), whose sum is σ = 127357200000. Its totient is φ = 115181434368.

The previous prime is 121202021989. The next prime is 121202022017. The reversal of 121202022001 is 100220202121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121202022001 - 2⁹ = 121202021489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121202022061) 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, 2401836 + ... + 2451778.

It is an arithmetic number, because the mean of its divisors is an integer number (7959825000).

Almost surely, 2^121202022001 is an apocalyptic number.

It is an amenable number.

121202022001 is a deficient number, since it is larger than the sum of its proper divisors (6155177999).

121202022001 is a wasteful number, since it uses less digits than its factorization.

121202022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51288.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 121202022001 its reverse (100220202121), we get a palindrome (221422224122).

The spelling of 121202022001 in words is "one hundred twenty-one billion, two hundred two million, twenty-two thousand, one".