121010021222001 has 4 divisors (see below), whose sum is σ = 161346694962672. Its totient is φ = 80673347481332.

The previous prime is 121010021221967. The next prime is 121010021222009. The reversal of 121010021222001 is 100222120010121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121010021222001 - 2¹⁴ = 121010021205617 is a prime.

It is a super-2 number, since 2×121010021222001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121010021222009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20168336870331 + ... + 20168336870336.

It is an arithmetic number, because the mean of its divisors is an integer number (40336673740668).

Almost surely, 2^{121010021222001} is an apocalyptic number.

It is an amenable number.

121010021222001 is a deficient number, since it is larger than the sum of its proper divisors (40336673740671).

121010021222001 is an equidigital number, since it uses as much as digits as its factorization.

121010021222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40336673740670.

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

Adding to 121010021222001 its reverse (100222120010121), we get a palindrome (221232141232122).

The spelling of 121010021222001 in words is "one hundred twenty-one trillion, ten billion, twenty-one million, two hundred twenty-two thousand, one".