1220302012431 has 32 divisors (see below), whose sum is σ = 1705116787200. Its totient is φ = 775308643200.

The previous prime is 1220302012417. The next prime is 1220302012441. The reversal of 1220302012431 is 1342102030221.

It is not a de Polignac number, because 1220302012431 - 2⁵ = 1220302012399 is a prime.

It is a super-2 number, since 2×1220302012431² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220302012398 and 1220302012407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220302012441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1766680 + ... + 2358338.

It is an arithmetic number, because the mean of its divisors is an integer number (53284899600).

Almost surely, 2^{1220302012431} is an apocalyptic number.

1220302012431 is a deficient number, since it is larger than the sum of its proper divisors (484814774769).

1220302012431 is a wasteful number, since it uses less digits than its factorization.

1220302012431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591999.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1220302012431 its reverse (1342102030221), we get a palindrome (2562404042652).

The spelling of 1220302012431 in words is "one trillion, two hundred twenty billion, three hundred two million, twelve thousand, four hundred thirty-one".