212455434426 has 32 divisors (see below), whose sum is σ = 426684360960. Its totient is φ = 70523136576.

The previous prime is 212455434409. The next prime is 212455434461. The reversal of 212455434426 is 624434554212.

212455434426 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3662440 + ... + 3719996.

It is an arithmetic number, because the mean of its divisors is an integer number (13333886280).

Almost surely, 2^212455434426 is an apocalyptic number.

212455434426 is an abundant number, since it is smaller than the sum of its proper divisors (214228926534).

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

212455434426 is a wasteful number, since it uses less digits than its factorization.

212455434426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60118.

The product of its digits is 921600, while the sum is 42.

Adding to 212455434426 its reverse (624434554212), we get a palindrome (836889988638).

The spelling of 212455434426 in words is "two hundred twelve billion, four hundred fifty-five million, four hundred thirty-four thousand, four hundred twenty-six".