121002220022101 has 64 divisors (see below), whose sum is σ = 136047797842176. Its totient is φ = 106698896179200.

The previous prime is 121002220022053. The next prime is 121002220022113. The reversal of 121002220022101 is 101220022200121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121002220022101 - 2³³ = 120993630087509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002220022401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8834206485 + ... + 8834220181.

It is an arithmetic number, because the mean of its divisors is an integer number (2125746841284).

Almost surely, 2^{121002220022101} is an apocalyptic number.

121002220022101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121002220022101 is a deficient number, since it is larger than the sum of its proper divisors (15045577820075).

121002220022101 is a wasteful number, since it uses less digits than its factorization.

121002220022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14662.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121002220022101 its reverse (101220022200121), we get a palindrome (222222242222222).

The spelling of 121002220022101 in words is "one hundred twenty-one trillion, two billion, two hundred twenty million, twenty-two thousand, one hundred one".