51124444122211 has 16 divisors (see below), whose sum is σ = 56535618415104. Its totient is φ = 45984090582144.

The previous prime is 51124444122179. The next prime is 51124444122229. The reversal of 51124444122211 is 11222144442115.

It is not a de Polignac number, because 51124444122211 - 2⁵ = 51124444122179 is a prime.

It is a super-2 number, since 2×51124444122211² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51124444122911) 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, 57776871 + ... + 58655056.

It is an arithmetic number, because the mean of its divisors is an integer number (3533476150944).

Almost surely, 2^{51124444122211} is an apocalyptic number.

51124444122211 is a deficient number, since it is larger than the sum of its proper divisors (5411174292893).

51124444122211 is a wasteful number, since it uses less digits than its factorization.

51124444122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116433090.

The product of its digits is 20480, while the sum is 34.

Adding to 51124444122211 its reverse (11222144442115), we get a palindrome (62346588564326).

The spelling of 51124444122211 in words is "fifty-one trillion, one hundred twenty-four billion, four hundred forty-four million, one hundred twenty-two thousand, two hundred eleven".