47991212022 has 16 divisors (see below), whose sum is σ = 103365687600. Its totient is φ = 14766526752.

The previous prime is 47991211981. The next prime is 47991212023. The reversal of 47991212022 is 22021219974.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47991212023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307635897 + ... + 307636052.

It is an arithmetic number, because the mean of its divisors is an integer number (6460355475).

Almost surely, 2^47991212022 is an apocalyptic number.

47991212022 is an abundant number, since it is smaller than the sum of its proper divisors (55374475578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47991212022 is a wasteful number, since it uses less digits than its factorization.

47991212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615271967.

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 47991212022 in words is "forty-seven billion, nine hundred ninety-one million, two hundred twelve thousand, twenty-two".