2221002121031 has 8 divisors (see below), whose sum is σ = 2276733525264. Its totient is φ = 2165456180160.

The previous prime is 2221002121027. The next prime is 2221002121043. The reversal of 2221002121031 is 1301212001222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2221002121031 - 2² = 2221002121027 is a prime.

It is a super-2 number, since 2×2221002121031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221002121231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46341590 + ... + 46389491.

It is an arithmetic number, because the mean of its divisors is an integer number (284591690658).

Almost surely, 2^{2221002121031} is an apocalyptic number.

2221002121031 is a deficient number, since it is larger than the sum of its proper divisors (55731404233).

2221002121031 is an equidigital number, since it uses as much as digits as its factorization.

2221002121031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92731681.

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

Adding to 2221002121031 its reverse (1301212001222), we get a palindrome (3522214122253).

The spelling of 2221002121031 in words is "two trillion, two hundred twenty-one billion, two million, one hundred twenty-one thousand, thirty-one".