213221195 has 32 divisors (see below), whose sum is σ = 296637120. Its totient is φ = 145635840.

The previous prime is 213221171. The next prime is 213221209. The reversal of 213221195 is 591122312.

It is a happy number.

It is not a de Polignac number, because 213221195 - 2¹² = 213217099 is a prime.

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, 57209 + ... + 60821.

It is an arithmetic number, because the mean of its divisors is an integer number (9269910).

Almost surely, 2^213221195 is an apocalyptic number.

213221195 is a deficient number, since it is larger than the sum of its proper divisors (83415925).

213221195 is a wasteful number, since it uses less digits than its factorization.

213221195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695.

The product of its digits is 1080, while the sum is 26.

The square root of 213221195 is about 14602.0955687874. The cubic root of 213221195 is about 597.4159192623.

The spelling of 213221195 in words is "two hundred thirteen million, two hundred twenty-one thousand, one hundred ninety-five".