12220001221201 has 16 divisors (see below), whose sum is σ = 12733499761920. Its totient is φ = 11719506700800.

The previous prime is 12220001221177. The next prime is 12220001221237. The reversal of 12220001221201 is 10212210002221.

It is a happy number.

12220001221201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12220001221201 - 2¹³ = 12220001213009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220001224201) 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, 12808911 + ... + 13729828.

It is an arithmetic number, because the mean of its divisors is an integer number (795843735120).

Almost surely, 2^{12220001221201} is an apocalyptic number.

It is an amenable number.

12220001221201 is a deficient number, since it is larger than the sum of its proper divisors (513498540719).

12220001221201 is a wasteful number, since it uses less digits than its factorization.

12220001221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26538984.

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

Adding to 12220001221201 its reverse (10212210002221), we get a palindrome (22432211223422).

The spelling of 12220001221201 in words is "twelve trillion, two hundred twenty billion, one million, two hundred twenty-one thousand, two hundred one".