212412266653 has 4 divisors (see below), whose sum is σ = 212604844608. Its totient is φ = 212219688700.

The previous prime is 212412266611. The next prime is 212412266669. The reversal of 212412266653 is 356662214212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212412266653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212412296653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96287323 + ... + 96289528.

It is an arithmetic number, because the mean of its divisors is an integer number (53151211152).

Almost surely, 2^212412266653 is an apocalyptic number.

It is an amenable number.

212412266653 is a deficient number, since it is larger than the sum of its proper divisors (192577955).

212412266653 is a wasteful number, since it uses less digits than its factorization.

212412266653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192577954.

The product of its digits is 207360, while the sum is 40.

The spelling of 212412266653 in words is "two hundred twelve billion, four hundred twelve million, two hundred sixty-six thousand, six hundred fifty-three".