121011220102201 has 16 divisors (see below), whose sum is σ = 143574622164288. Its totient is φ = 100542452472000.

The previous prime is 121011220102187. The next prime is 121011220102207. The reversal of 121011220102201 is 102201022110121.

It is not a de Polignac number, because 121011220102201 - 2⁵ = 121011220102169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121011220102207) 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, 4189254411 + ... + 4189283296.

It is an arithmetic number, because the mean of its divisors is an integer number (8973413885268).

Almost surely, 2^{121011220102201} is an apocalyptic number.

121011220102201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121011220102201 is a deficient number, since it is larger than the sum of its proper divisors (22563402062087).

121011220102201 is a wasteful number, since it uses less digits than its factorization.

121011220102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8378537832.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121011220102201 its reverse (102201022110121), we get a palindrome (223212242212322).

The spelling of 121011220102201 in words is "one hundred twenty-one trillion, eleven billion, two hundred twenty million, one hundred two thousand, two hundred one".