7421122331213 has 4 divisors (see below), whose sum is σ = 7493172062688. Its totient is φ = 7349072599740.

The previous prime is 7421122331209. The next prime is 7421122331221. The reversal of 7421122331213 is 3121332211247.

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 7421122331213 - 2² = 7421122331209 is a prime.

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 7421122331213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7421122331263) 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, 36024865583 + ... + 36024865788.

It is an arithmetic number, because the mean of its divisors is an integer number (1873293015672).

Almost surely, 2^{7421122331213} is an apocalyptic number.

It is an amenable number.

7421122331213 is a deficient number, since it is larger than the sum of its proper divisors (72049731475).

7421122331213 is a wasteful number, since it uses less digits than its factorization.

7421122331213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72049731474.

The product of its digits is 12096, while the sum is 32.

The spelling of 7421122331213 in words is "seven trillion, four hundred twenty-one billion, one hundred twenty-two million, three hundred thirty-one thousand, two hundred thirteen".