2221104100031 has 4 divisors (see below), whose sum is σ = 2221293254592. Its totient is φ = 2220914945472.

The previous prime is 2221104099997. The next prime is 2221104100057. The reversal of 2221104100031 is 1300014011222.

2221104100031 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.

It is a cyclic number.

It is not a de Polignac number, because 2221104100031 - 2²⁶ = 2221036991167 is a prime.

It is a super-2 number, since 2×2221104100031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221104099982 and 2221104100009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221104100231) 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, 94559666 + ... + 94583151.

It is an arithmetic number, because the mean of its divisors is an integer number (555323313648).

Almost surely, 2^{2221104100031} is an apocalyptic number.

2221104100031 is a deficient number, since it is larger than the sum of its proper divisors (189154561).

2221104100031 is a wasteful number, since it uses less digits than its factorization.

2221104100031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189154560.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2221104100031 its reverse (1300014011222), we get a palindrome (3521118111253).

The spelling of 2221104100031 in words is "two trillion, two hundred twenty-one billion, one hundred four million, one hundred thousand, thirty-one".