213021190 has 16 divisors (see below), whose sum is σ = 384970320. Its totient is φ = 84868000.

The previous prime is 213021161. The next prime is 213021191. The reversal of 213021190 is 91120312.

It is a super-2 number, since 2×213021190² = 90756054778032200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213021191) 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, 39925 + ... + 44944.

It is an arithmetic number, because the mean of its divisors is an integer number (24060645).

Almost surely, 2^213021190 is an apocalyptic number.

213021190 is a deficient number, since it is larger than the sum of its proper divisors (171949130).

213021190 is a wasteful number, since it uses less digits than its factorization.

213021190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85127.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 213021190 is about 14595.2454587102. The cubic root of 213021190 is about 597.2290654954.

The spelling of 213021190 in words is "two hundred thirteen million, twenty-one thousand, one hundred ninety".