100212205656215 has 32 divisors (see below), whose sum is σ = 127575988899840. Its totient is φ = 75355606022400.

The previous prime is 100212205656197. The next prime is 100212205656221. The reversal of 100212205656215 is 512656502212001.

It is not a de Polignac number, because 100212205656215 - 2⁶ = 100212205656151 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22293410 + ... + 26408720.

It is an arithmetic number, because the mean of its divisors is an integer number (3986749653120).

Almost surely, 2^{100212205656215} is an apocalyptic number.

100212205656215 is a deficient number, since it is larger than the sum of its proper divisors (27363783243625).

100212205656215 is a wasteful number, since it uses less digits than its factorization.

100212205656215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4117343.

The product of its (nonzero) digits is 72000, while the sum is 38.

Adding to 100212205656215 its reverse (512656502212001), we get a palindrome (612868707868216).

The spelling of 100212205656215 in words is "one hundred trillion, two hundred twelve billion, two hundred five million, six hundred fifty-six thousand, two hundred fifteen".