213985022091 has 8 divisors (see below), whose sum is σ = 290696634000. Its totient is φ = 139965045792.

The previous prime is 213985022011. The next prime is 213985022123. The reversal of 213985022091 is 190220589312.

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

It is not a de Polignac number, because 213985022091 - 2¹⁰ = 213985021067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213985022011) 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, 672908716 + ... + 672909033.

It is an arithmetic number, because the mean of its divisors is an integer number (36337079250).

Almost surely, 2^213985022091 is an apocalyptic number.

213985022091 is a deficient number, since it is larger than the sum of its proper divisors (76711611909).

213985022091 is a wasteful number, since it uses less digits than its factorization.

213985022091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345817805.

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 213985022091 in words is "two hundred thirteen billion, nine hundred eighty-five million, twenty-two thousand, ninety-one".