2217111231126 has 64 divisors (see below), whose sum is σ = 4955707878912. Its totient is φ = 655413600000.

The previous prime is 2217111231107. The next prime is 2217111231131. The reversal of 2217111231126 is 6211321117122.

It is a super-2 number, since 2×2217111231126² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2217111231093 and 2217111231102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46928196 + ... + 46975416.

It is an arithmetic number, because the mean of its divisors is an integer number (77432935608).

Almost surely, 2^{2217111231126} is an apocalyptic number.

2217111231126 is an abundant number, since it is smaller than the sum of its proper divisors (2738596647786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2217111231126 is a wasteful number, since it uses less digits than its factorization.

2217111231126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64629.

The product of its digits is 2016, while the sum is 30.

Adding to 2217111231126 its reverse (6211321117122), we get a palindrome (8428432348248).

The spelling of 2217111231126 in words is "two trillion, two hundred seventeen billion, one hundred eleven million, two hundred thirty-one thousand, one hundred twenty-six".