121002210122001 has 16 divisors (see below), whose sum is σ = 173756490880896. Its totient is φ = 74458729552896.

The previous prime is 121002210121999. The next prime is 121002210122081. The reversal of 121002210122001 is 100221012200121.

It is not a de Polignac number, because 121002210122001 - 2¹ = 121002210121999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121002210122081) 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, 86148240 + ... + 87541553.

It is an arithmetic number, because the mean of its divisors is an integer number (10859780680056).

Almost surely, 2^{121002210122001} is an apocalyptic number.

It is an amenable number.

121002210122001 is a deficient number, since it is larger than the sum of its proper divisors (52754280758895).

121002210122001 is a wasteful number, since it uses less digits than its factorization.

121002210122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173707672.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121002210122001 its reverse (100221012200121), we get a palindrome (221223222322122).

The spelling of 121002210122001 in words is "one hundred twenty-one trillion, two billion, two hundred ten million, one hundred twenty-two thousand, one".