212315063651 has 16 divisors (see below), whose sum is σ = 219815285760. Its totient is φ = 204856148640.

The previous prime is 212315063621. The next prime is 212315063663. The reversal of 212315063651 is 156360513212.

It is a cyclic number.

It is not a de Polignac number, because 212315063651 - 2²² = 212310869347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212315063621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29052740 + ... + 29060046.

It is an arithmetic number, because the mean of its divisors is an integer number (13738455360).

Almost surely, 2^212315063651 is an apocalyptic number.

212315063651 is a deficient number, since it is larger than the sum of its proper divisors (7500222109).

212315063651 is a wasteful number, since it uses less digits than its factorization.

212315063651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9994.

The product of its (nonzero) digits is 32400, while the sum is 35.

Adding to 212315063651 its reverse (156360513212), we get a palindrome (368675576863).

The spelling of 212315063651 in words is "two hundred twelve billion, three hundred fifteen million, sixty-three thousand, six hundred fifty-one".