37122120121 has 4 divisors (see below), whose sum is σ = 37911952512. Its totient is φ = 36332287732.

The previous prime is 37122120073. The next prime is 37122120131. The reversal of 37122120121 is 12102122173.

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 37122120121 - 2⁹ = 37122119609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 37122120092 and 37122120101.

It is not an unprimeable number, because it can be changed into a prime (37122120131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394916125 + ... + 394916218.

It is an arithmetic number, because the mean of its divisors is an integer number (9477988128).

Almost surely, 2^37122120121 is an apocalyptic number.

It is an amenable number.

37122120121 is a deficient number, since it is larger than the sum of its proper divisors (789832391).

37122120121 is an equidigital number, since it uses as much as digits as its factorization.

37122120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789832390.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 37122120121 its reverse (12102122173), we get a palindrome (49224242294).

The spelling of 37122120121 in words is "thirty-seven billion, one hundred twenty-two million, one hundred twenty thousand, one hundred twenty-one".