212246365542 has 32 divisors (see below), whose sum is σ = 449808647904. Its totient is φ = 66535872000.

The previous prime is 212246365523. The next prime is 212246365649. The reversal of 212246365542 is 245563642212.

It is a junction number, because it is equal to n+sod(n) for n = 212246365494 and 212246365503.

It is a congruent number.

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, 667009 + ... + 932412.

It is an arithmetic number, because the mean of its divisors is an integer number (14056520247).

Almost surely, 2^212246365542 is an apocalyptic number.

212246365542 is an abundant number, since it is smaller than the sum of its proper divisors (237562282362).

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

212246365542 is a wasteful number, since it uses less digits than its factorization.

212246365542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600744.

The product of its digits is 691200, while the sum is 42.

The spelling of 212246365542 in words is "two hundred twelve billion, two hundred forty-six million, three hundred sixty-five thousand, five hundred forty-two".