7920011222131 has 16 divisors (see below), whose sum is σ = 7997846151168. Its totient is φ = 7842606105600.

The previous prime is 7920011222089. The next prime is 7920011222141. The reversal of 7920011222131 is 1312221100297.

It is a cyclic number.

It is not a de Polignac number, because 7920011222131 - 2¹¹ = 7920011220083 is a prime.

It is a super-2 number, since 2×7920011222131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7920011222093 and 7920011222102.

It is not an unprimeable number, because it can be changed into a prime (7920011222141) 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, 59614080 + ... + 59746786.

It is an arithmetic number, because the mean of its divisors is an integer number (499865384448).

Almost surely, 2^{7920011222131} is an apocalyptic number.

7920011222131 is a deficient number, since it is larger than the sum of its proper divisors (77834929037).

7920011222131 is a wasteful number, since it uses less digits than its factorization.

7920011222131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134322.

The product of its (nonzero) digits is 3024, while the sum is 31.

The spelling of 7920011222131 in words is "seven trillion, nine hundred twenty billion, eleven million, two hundred twenty-two thousand, one hundred thirty-one".