1220131122023 has 16 divisors (see below), whose sum is σ = 1350985084416. Its totient is φ = 1092600949440.

The previous prime is 1220131122011. The next prime is 1220131122103. The reversal of 1220131122023 is 3202211310221.

It is a de Polignac number, because none of the positive numbers 2^k-1220131122023 is a prime.

It is a super-2 number, since 2×1220131122023² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220131121986 and 1220131122004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220131122923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28384715 + ... + 28427667.

It is an arithmetic number, because the mean of its divisors is an integer number (84436567776).

Almost surely, 2^{1220131122023} is an apocalyptic number.

1220131122023 is a deficient number, since it is larger than the sum of its proper divisors (130853962393).

1220131122023 is a wasteful number, since it uses less digits than its factorization.

1220131122023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81574.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1220131122023 its reverse (3202211310221), we get a palindrome (4422342432244).

The spelling of 1220131122023 in words is "one trillion, two hundred twenty billion, one hundred thirty-one million, one hundred twenty-two thousand, twenty-three".