1012222121031 has 24 divisors (see below), whose sum is σ = 1628953208064. Its totient is φ = 600415439760.

The previous prime is 1012222121011. The next prime is 1012222121041. The reversal of 1012222121031 is 1301212222101.

It is not a de Polignac number, because 1012222121031 - 2⁹ = 1012222120519 is a prime.

It is a super-2 number, since 2×1012222121031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1012222120995 and 1012222121013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012222121011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108766261 + ... + 108775566.

It is an arithmetic number, because the mean of its divisors is an integer number (67873050336).

Almost surely, 2^{1012222121031} is an apocalyptic number.

1012222121031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1012222121031 is a deficient number, since it is larger than the sum of its proper divisors (616731087033).

1012222121031 is a wasteful number, since it uses less digits than its factorization.

1012222121031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217541891 (or 217541888 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1012222121031 its reverse (1301212222101), we get a palindrome (2313434343132).

The spelling of 1012222121031 in words is "one trillion, twelve billion, two hundred twenty-two million, one hundred twenty-one thousand, thirty-one".