1222430133421 has 4 divisors (see below), whose sum is σ = 1397063009632. Its totient is φ = 1047797257212.

The previous prime is 1222430133329. The next prime is 1222430133443. The reversal of 1222430133421 is 1243310342221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1222430133421 - 2³⁹ = 672674319533 is a prime.

It is a super-2 number, since 2×1222430133421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222430133421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222430134421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87316438095 + ... + 87316438108.

It is an arithmetic number, because the mean of its divisors is an integer number (349265752408).

Almost surely, 2^{1222430133421} is an apocalyptic number.

It is an amenable number.

1222430133421 is a deficient number, since it is larger than the sum of its proper divisors (174632876211).

1222430133421 is an equidigital number, since it uses as much as digits as its factorization.

1222430133421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174632876210.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1222430133421 its reverse (1243310342221), we get a palindrome (2465740475642).

The spelling of 1222430133421 in words is "one trillion, two hundred twenty-two billion, four hundred thirty million, one hundred thirty-three thousand, four hundred twenty-one".