212253242053542 has 16 divisors (see below), whose sum is σ = 425544397276080. Its totient is φ = 70578095156352.

The previous prime is 212253242053477. The next prime is 212253242053583. The reversal of 212253242053542 is 245350242352212.

It is a junction number, because it is equal to n+sod(n) for n = 212253242053494 and 212253242053503.

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, 43246379383 + ... + 43246384290.

It is an arithmetic number, because the mean of its divisors is an integer number (26596524829755).

Almost surely, 2^{212253242053542} is an apocalyptic number.

212253242053542 is an abundant number, since it is smaller than the sum of its proper divisors (213291155222538).

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

212253242053542 is a wasteful number, since it uses less digits than its factorization.

212253242053542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86492764087.

The product of its (nonzero) digits is 1152000, while the sum is 42.

The spelling of 212253242053542 in words is "two hundred twelve trillion, two hundred fifty-three billion, two hundred forty-two million, fifty-three thousand, five hundred forty-two".