1231133202022 has 4 divisors (see below), whose sum is σ = 1846699803036. Its totient is φ = 615566601010.

The previous prime is 1231133201981. The next prime is 1231133202041. The reversal of 1231133202022 is 2202023311321.

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

It is a super-2 number, since 2×1231133202022² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231133201984 and 1231133202002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307783300504 + ... + 307783300507.

It is an arithmetic number, because the mean of its divisors is an integer number (461674950759).

Almost surely, 2^{1231133202022} is an apocalyptic number.

1231133202022 is a deficient number, since it is larger than the sum of its proper divisors (615566601014).

1231133202022 is an equidigital number, since it uses as much as digits as its factorization.

1231133202022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615566601013.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1231133202022 its reverse (2202023311321), we get a palindrome (3433156513343).

The spelling of 1231133202022 in words is "one trillion, two hundred thirty-one billion, one hundred thirty-three million, two hundred two thousand, twenty-two".