121120220010021 has 32 divisors (see below), whose sum is σ = 169756357017600. Its totient is φ = 76721914376640.

The previous prime is 121120220010017. The next prime is 121120220010073. The reversal of 121120220010021 is 120010022021121.

It is not a de Polignac number, because 121120220010021 - 2² = 121120220010017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120220010521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44734246 + ... + 47364471.

It is an arithmetic number, because the mean of its divisors is an integer number (5304886156800).

Almost surely, 2^{121120220010021} is an apocalyptic number.

It is an amenable number.

121120220010021 is a deficient number, since it is larger than the sum of its proper divisors (48636137007579).

121120220010021 is a wasteful number, since it uses less digits than its factorization.

121120220010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92099009.

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

Adding to 121120220010021 its reverse (120010022021121), we get a palindrome (241130242031142).

The spelling of 121120220010021 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred twenty million, ten thousand, twenty-one".