213022101 has 8 divisors (see below), whose sum is σ = 290957184. Its totient is φ = 138550880.

The previous prime is 213022097. The next prime is 213022163. The reversal of 213022101 is 101220312.

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

It is a cyclic number.

It is not a de Polignac number, because 213022101 - 2² = 213022097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213022501) 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, 865821 + ... + 866066.

It is an arithmetic number, because the mean of its divisors is an integer number (36369648).

Almost surely, 2^213022101 is an apocalyptic number.

It is an amenable number.

213022101 is a deficient number, since it is larger than the sum of its proper divisors (77935083).

213022101 is a wasteful number, since it uses less digits than its factorization.

213022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731931.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 213022101 is about 14595.2766674702. The cubic root of 213022101 is about 597.2299168581.

Adding to 213022101 its reverse (101220312), we get a palindrome (314242413).

The spelling of 213022101 in words is "two hundred thirteen million, twenty-two thousand, one hundred one".