12210121011201 has 64 divisors (see below), whose sum is σ = 16949166114816. Its totient is φ = 7812516096000.

The previous prime is 12210121011173. The next prime is 12210121011223. The reversal of 12210121011201 is 10211012101221.

It is a happy number.

It is not a de Polignac number, because 12210121011201 - 2²⁵ = 12210087456769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12210121011281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1651574961 + ... + 1651582353.

It is an arithmetic number, because the mean of its divisors is an integer number (264830720544).

Almost surely, 2^{12210121011201} is an apocalyptic number.

It is an amenable number.

12210121011201 is a deficient number, since it is larger than the sum of its proper divisors (4739045103615).

12210121011201 is a wasteful number, since it uses less digits than its factorization.

12210121011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8262.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12210121011201 its reverse (10211012101221), we get a palindrome (22421133112422).

The spelling of 12210121011201 in words is "twelve trillion, two hundred ten billion, one hundred twenty-one million, eleven thousand, two hundred one".