212115506306601 has 16 divisors (see below), whose sum is σ = 287779776148800. Its totient is φ = 138941638427328.

The previous prime is 212115506306581. The next prime is 212115506306647. The reversal of 212115506306601 is 106603605511212.

It is not a de Polignac number, because 212115506306601 - 2³⁸ = 211840628399657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212115506306601.

It is not an unprimeable number, because it can be changed into a prime (212115506306651) 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, 1356349866 + ... + 1356506243.

It is an arithmetic number, because the mean of its divisors is an integer number (17986236009300).

Almost surely, 2^{212115506306601} is an apocalyptic number.

It is an amenable number.

212115506306601 is a deficient number, since it is larger than the sum of its proper divisors (75664269842199).

212115506306601 is a wasteful number, since it uses less digits than its factorization.

212115506306601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2712856568.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 212115506306601 in words is "two hundred twelve trillion, one hundred fifteen billion, five hundred six million, three hundred six thousand, six hundred one".