212212033442 has 16 divisors (see below), whose sum is σ = 321494252472. Its totient is φ = 105047443200.

The previous prime is 212212033403. The next prime is 212212033457. The reversal of 212212033442 is 244330212212.

It can be written as a sum of positive squares in 4 ways, for example, as 124447378441 + 87764655001 = 352771^2 + 296251^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3299738 + ... + 3363434.

Almost surely, 2^212212033442 is an apocalyptic number.

212212033442 is a deficient number, since it is larger than the sum of its proper divisors (109282219030).

212212033442 is a wasteful number, since it uses less digits than its factorization.

212212033442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80293.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 212212033442 its reverse (244330212212), we get a palindrome (456542245654).

The spelling of 212212033442 in words is "two hundred twelve billion, two hundred twelve million, thirty-three thousand, four hundred forty-two".