1222243301421 has 16 divisors (see below), whose sum is σ = 1810773921600. Its totient is φ = 814809470544.

The previous prime is 1222243301299. The next prime is 1222243301429. The reversal of 1222243301421 is 1241033422221.

1222243301421 is a `hidden beast` number, since 1 + 2 + 222 + 433 + 0 + 1 + 4 + 2 + 1 = 666.

It is not a de Polignac number, because 1222243301421 - 2¹⁷ = 1222243170349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222243301429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 665335 + ... + 1699163.

It is an arithmetic number, because the mean of its divisors is an integer number (113173370100).

Almost surely, 2^{1222243301421} is an apocalyptic number.

It is an amenable number.

1222243301421 is a deficient number, since it is larger than the sum of its proper divisors (588530620179).

1222243301421 is a wasteful number, since it uses less digits than its factorization.

1222243301421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077625 (or 1077619 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1222243301421 its reverse (1241033422221), we get a palindrome (2463276723642).

The spelling of 1222243301421 in words is "one trillion, two hundred twenty-two billion, two hundred forty-three million, three hundred one thousand, four hundred twenty-one".