37204112221 has 4 divisors (see below), whose sum is σ = 37208164032. Its totient is φ = 37200060412.

The previous prime is 37204112177. The next prime is 37204112261. The reversal of 37204112221 is 12221140273.

37204112221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 37204112221 - 2²⁵ = 37170557789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37204112261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2012101 + ... + 2030506.

It is an arithmetic number, because the mean of its divisors is an integer number (9302041008).

Almost surely, 2^37204112221 is an apocalyptic number.

It is an amenable number.

37204112221 is a deficient number, since it is larger than the sum of its proper divisors (4051811).

37204112221 is an equidigital number, since it uses as much as digits as its factorization.

37204112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4051810.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 37204112221 its reverse (12221140273), we get a palindrome (49425252494).

The spelling of 37204112221 in words is "thirty-seven billion, two hundred four million, one hundred twelve thousand, two hundred twenty-one".