212455300142 has 16 divisors (see below), whose sum is σ = 321921607392. Its totient is φ = 105153377280.

The previous prime is 212455300139. The next prime is 212455300181. The reversal of 212455300142 is 241003554212.

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, 1239203 + ... + 1400190.

It is an arithmetic number, because the mean of its divisors is an integer number (20120100462).

Almost surely, 2^212455300142 is an apocalyptic number.

212455300142 is a deficient number, since it is larger than the sum of its proper divisors (109466307250).

212455300142 is a wasteful number, since it uses less digits than its factorization.

212455300142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639803.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 212455300142 its reverse (241003554212), we get a palindrome (453458854354).

The spelling of 212455300142 in words is "two hundred twelve billion, four hundred fifty-five million, three hundred thousand, one hundred forty-two".