213223101 has 32 divisors (see below), whose sum is σ = 352520448. Its totient is φ = 111628800.

The previous prime is 213223093. The next prime is 213223117. The reversal of 213223101 is 101322312.

It is not a de Polignac number, because 213223101 - 2³ = 213223093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213223141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34551 + ... + 40251.

It is an arithmetic number, because the mean of its divisors is an integer number (11016264).

Almost surely, 2^213223101 is an apocalyptic number.

213223101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

213223101 is a deficient number, since it is larger than the sum of its proper divisors (139297347).

213223101 is a wasteful number, since it uses less digits than its factorization.

213223101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5861.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 213223101 is about 14602.1608332466. The cubic root of 213223101 is about 597.4176993720.

Adding to 213223101 its reverse (101322312), we get a palindrome (314545413).

The spelling of 213223101 in words is "two hundred thirteen million, two hundred twenty-three thousand, one hundred one".