7221323722207 has 16 divisors (see below), whose sum is σ = 8480481468480. Its totient is φ = 6019228136448.

The previous prime is 7221323722199. The next prime is 7221323722211. The reversal of 7221323722207 is 7022273231227.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 7221323722207 - 2³ = 7221323722199 is a prime.

It is a super-2 number, since 2×7221323722207² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7221323722207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7221323722247) 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, 6890728 + ... + 7869229.

It is an arithmetic number, because the mean of its divisors is an integer number (530030091780).

Almost surely, 2^{7221323722207} is an apocalyptic number.

7221323722207 is a deficient number, since it is larger than the sum of its proper divisors (1259157746273).

7221323722207 is a wasteful number, since it uses less digits than its factorization.

7221323722207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14761890.

The product of its (nonzero) digits is 197568, while the sum is 40.

The spelling of 7221323722207 in words is "seven trillion, two hundred twenty-one billion, three hundred twenty-three million, seven hundred twenty-two thousand, two hundred seven".