212442104 has 32 divisors (see below), whose sum is σ = 456624480. Its totient is φ = 90768384.

The previous prime is 212442091. The next prime is 212442119. The reversal of 212442104 is 401244212.

212442104 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 13244 + ... + 24500.

It is an arithmetic number, because the mean of its divisors is an integer number (14269515).

Almost surely, 2^212442104 is an apocalyptic number.

It is an amenable number.

212442104 is an abundant number, since it is smaller than the sum of its proper divisors (244182376).

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

212442104 is a wasteful number, since it uses less digits than its factorization.

212442104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11607 (or 11603 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 212442104 is about 14575.3937854179. The cubic root of 212442104 is about 596.6873966075.

Adding to 212442104 its reverse (401244212), we get a palindrome (613686316).

The spelling of 212442104 in words is "two hundred twelve million, four hundred forty-two thousand, one hundred four".