2221042111031 has 32 divisors (see below), whose sum is σ = 2476841209920. Its totient is φ = 1982237515776.

The previous prime is 2221042111027. The next prime is 2221042111097. The reversal of 2221042111031 is 1301112401222.

It is a cyclic number.

It is not a de Polignac number, because 2221042111031 - 2² = 2221042111027 is a prime.

It is a super-2 number, since 2×2221042111031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2221042110994 and 2221042111012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221042117031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12270635 + ... + 12450323.

It is an arithmetic number, because the mean of its divisors is an integer number (77401287810).

Almost surely, 2^{2221042111031} is an apocalyptic number.

2221042111031 is a deficient number, since it is larger than the sum of its proper divisors (255799098889).

2221042111031 is a wasteful number, since it uses less digits than its factorization.

2221042111031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180243.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2221042111031 its reverse (1301112401222), we get a palindrome (3522154512253).

The spelling of 2221042111031 in words is "two trillion, two hundred twenty-one billion, forty-two million, one hundred eleven thousand, thirty-one".