213220231001999 has 16 divisors (see below), whose sum is σ = 234512355073920. Its totient is φ = 192626937976320.

The previous prime is 213220231001957. The next prime is 213220231002013. The reversal of 213220231001999 is 999100132022312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 213220231001999 - 2³⁶ = 213151511525263 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 (213220231001399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25156967 + ... + 32547095.

It is an arithmetic number, because the mean of its divisors is an integer number (14657022192120).

Almost surely, 2^{213220231001999} is an apocalyptic number.

213220231001999 is a deficient number, since it is larger than the sum of its proper divisors (21292124071921).

213220231001999 is a wasteful number, since it uses less digits than its factorization.

213220231001999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7437410.

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 213220231001999 in words is "two hundred thirteen trillion, two hundred twenty billion, two hundred thirty-one million, one thousand, nine hundred ninety-nine".