7121536227 has 16 divisors (see below), whose sum is σ = 11361995680. Its totient is φ = 4382483616.

The previous prime is 7121536193. The next prime is 7121536241. The reversal of 7121536227 is 7226351217.

7121536227 is a `hidden beast` number, since 7 + 1 + 21 + 5 + 3 + 622 + 7 = 666.

It is not a de Polignac number, because 7121536227 - 2²⁰ = 7120487651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7121536191 and 7121536200.

It is not an unprimeable number, because it can be changed into a prime (7121536267) 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, 10144288 + ... + 10144989.

It is an arithmetic number, because the mean of its divisors is an integer number (710124730).

Almost surely, 2^7121536227 is an apocalyptic number.

7121536227 is a deficient number, since it is larger than the sum of its proper divisors (4240459453).

7121536227 is a wasteful number, since it uses less digits than its factorization.

7121536227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20289299 (or 20289293 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 7121536227 is about 84389.1949659434. The cubic root of 7121536227 is about 1923.9386944093.

The spelling of 7121536227 in words is "seven billion, one hundred twenty-one million, five hundred thirty-six thousand, two hundred twenty-seven".