1020112431022 has 4 divisors (see below), whose sum is σ = 1530168646536. Its totient is φ = 510056215510.

The previous prime is 1020112430999. The next prime is 1020112431029. The reversal of 1020112431022 is 2201342110201.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1020112431022² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020112431029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255028107754 + ... + 255028107757.

It is an arithmetic number, because the mean of its divisors is an integer number (382542161634).

Almost surely, 2^{1020112431022} is an apocalyptic number.

1020112431022 is a deficient number, since it is larger than the sum of its proper divisors (510056215514).

1020112431022 is an equidigital number, since it uses as much as digits as its factorization.

1020112431022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510056215513.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1020112431022 its reverse (2201342110201), we get a palindrome (3221454541223).

The spelling of 1020112431022 in words is "one trillion, twenty billion, one hundred twelve million, four hundred thirty-one thousand, twenty-two".