212113101201989 has 8 divisors (see below), whose sum is σ = 228432438860640. Its totient is φ = 195794184294576.

The previous prime is 212113101201949. The next prime is 212113101202033. The reversal of 212113101201989 is 989102101311212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212113101201989 is a prime.

It is a super-2 number, since 2×212113101201989² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212113101201949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104140379 + ... + 106157640.

It is an arithmetic number, because the mean of its divisors is an integer number (28554054857580).

Almost surely, 2^{212113101201989} is an apocalyptic number.

It is an amenable number.

212113101201989 is a deficient number, since it is larger than the sum of its proper divisors (16319337658651).

212113101201989 is a wasteful number, since it uses less digits than its factorization.

212113101201989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210375619.

The product of its (nonzero) digits is 15552, while the sum is 41.

The spelling of 212113101201989 in words is "two hundred twelve trillion, one hundred thirteen billion, one hundred one million, two hundred one thousand, nine hundred eighty-nine".