121011021111201 has 16 divisors (see below), whose sum is σ = 176206730636160. Its totient is φ = 73419471095040.

The previous prime is 121011021111121. The next prime is 121011021111229. The reversal of 121011021111201 is 102111120110121.

It is not a de Polignac number, because 121011021111201 - 2²¹ = 121011019014049 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121011021111401) 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, 21851030296 + ... + 21851035833.

It is an arithmetic number, because the mean of its divisors is an integer number (11012920664760).

Almost surely, 2^{121011021111201} is an apocalyptic number.

It is an amenable number.

121011021111201 is a deficient number, since it is larger than the sum of its proper divisors (55195709524959).

121011021111201 is a wasteful number, since it uses less digits than its factorization.

121011021111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43702066216.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 121011021111201 its reverse (102111120110121), we get a palindrome (223122141221322).

The spelling of 121011021111201 in words is "one hundred twenty-one trillion, eleven billion, twenty-one million, one hundred eleven thousand, two hundred one".