7222150721423 has 4 divisors (see below), whose sum is σ = 7878709877928. Its totient is φ = 6565591564920.

The previous prime is 7222150721371. The next prime is 7222150721431. The reversal of 7222150721423 is 3241270512227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7222150721423 - 2³² = 7217855754127 is a prime.

It is a super-2 number, since 2×7222150721423² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7222150721623) 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, 328279578236 + ... + 328279578257.

It is an arithmetic number, because the mean of its divisors is an integer number (1969677469482).

Almost surely, 2^{7222150721423} is an apocalyptic number.

7222150721423 is a deficient number, since it is larger than the sum of its proper divisors (656559156505).

7222150721423 is a wasteful number, since it uses less digits than its factorization.

7222150721423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656559156504.

The product of its (nonzero) digits is 94080, while the sum is 38.

The spelling of 7222150721423 in words is "seven trillion, two hundred twenty-two billion, one hundred fifty million, seven hundred twenty-one thousand, four hundred twenty-three".