121122021202001 has 4 divisors (see below), whose sum is σ = 121141985279472. Its totient is φ = 121102057124532.

The previous prime is 121122021201991. The next prime is 121122021202009. The reversal of 121122021202001 is 100202120221121.

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 121122021202001 - 2¹⁰ = 121122021200977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121122021202009) 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, 9982029635 + ... + 9982041768.

It is an arithmetic number, because the mean of its divisors is an integer number (30285496319868).

Almost surely, 2^{121122021202001} is an apocalyptic number.

It is an amenable number.

121122021202001 is a deficient number, since it is larger than the sum of its proper divisors (19964077471).

121122021202001 is an equidigital number, since it uses as much as digits as its factorization.

121122021202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19964077470.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121122021202001 its reverse (100202120221121), we get a palindrome (221324141423122).

The spelling of 121122021202001 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, twenty-one million, two hundred two thousand, one".