7117920212 has 12 divisors (see below), whose sum is σ = 13414542036. Its totient is φ = 3285193920.

The previous prime is 7117920203. The next prime is 7117920223. The reversal of 7117920212 is 2120297117.

It can be written as a sum of positive squares in 2 ways, for example, as 3617541316 + 3500378896 = 60146^2 + 59164^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68441489 + ... + 68441592.

It is an arithmetic number, because the mean of its divisors is an integer number (1117878503).

Almost surely, 2^7117920212 is an apocalyptic number.

It is an amenable number.

7117920212 is a deficient number, since it is larger than the sum of its proper divisors (6296621824).

7117920212 is a wasteful number, since it uses less digits than its factorization.

7117920212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136883098 (or 136883096 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 7117920212 is about 84367.7676129931. The cubic root of 7117920212 is about 1923.6130077046.

The spelling of 7117920212 in words is "seven billion, one hundred seventeen million, nine hundred twenty thousand, two hundred twelve".