212642020533 has 32 divisors (see below), whose sum is σ = 303378566400. Its totient is φ = 132017402880.

The previous prime is 212642020531. The next prime is 212642020573. The reversal of 212642020533 is 335020246212.

It is not a de Polignac number, because 212642020533 - 2¹ = 212642020531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212642020533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212642020531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1779091 + ... + 1894847.

It is an arithmetic number, because the mean of its divisors is an integer number (9480580200).

Almost surely, 2^212642020533 is an apocalyptic number.

It is an amenable number.

212642020533 is a deficient number, since it is larger than the sum of its proper divisors (90736545867).

212642020533 is a wasteful number, since it uses less digits than its factorization.

212642020533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116157.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 212642020533 its reverse (335020246212), we get a palindrome (547662266745).

The spelling of 212642020533 in words is "two hundred twelve billion, six hundred forty-two million, twenty thousand, five hundred thirty-three".