2212738791 has 8 divisors (see below), whose sum is σ = 2950535664. Its totient is φ = 1475050560.

The previous prime is 2212738783. The next prime is 2212738807. The reversal of 2212738791 is 1978372122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2212738791 - 2³ = 2212738783 is a prime.

It is a super-2 number, since 2×2212738791² = 9792425914392283362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212738721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67275 + ... + 94611.

It is an arithmetic number, because the mean of its divisors is an integer number (368816958).

Almost surely, 2^2212738791 is an apocalyptic number.

2212738791 is a deficient number, since it is larger than the sum of its proper divisors (737796873).

2212738791 is a wasteful number, since it uses less digits than its factorization.

2212738791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54321.

The product of its digits is 84672, while the sum is 42.

The square root of 2212738791 is about 47039.7575567732. The cubic root of 2212738791 is about 1303.0969145693.

The spelling of 2212738791 in words is "two billion, two hundred twelve million, seven hundred thirty-eight thousand, seven hundred ninety-one".