212554442 has 4 divisors (see below), whose sum is σ = 318831666. Its totient is φ = 106277220.

The previous prime is 212554429. The next prime is 212554453. The reversal of 212554442 is 244455212.

212554442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 133148521 + 79405921 = 11539^2 + 8911^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53138609 + ... + 53138612.

Almost surely, 2^212554442 is an apocalyptic number.

212554442 is a deficient number, since it is larger than the sum of its proper divisors (106277224).

212554442 is a wasteful number, since it uses less digits than its factorization.

212554442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106277223.

The product of its digits is 12800, while the sum is 29.

The square root of 212554442 is about 14579.2469627207. The cubic root of 212554442 is about 596.7925528765.

The spelling of 212554442 in words is "two hundred twelve million, five hundred fifty-four thousand, four hundred forty-two".