220212331 has 8 divisors (see below), whose sum is σ = 225547520. Its totient is φ = 214886952.

The previous prime is 220212323. The next prime is 220212347. The reversal of 220212331 is 133212022.

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 220212331 - 2³ = 220212323 is a prime.

It is a super-2 number, since 2×220212331² = 96986941448907122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220212301) 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, 64690 + ... + 68008.

It is an arithmetic number, because the mean of its divisors is an integer number (28193440).

Almost surely, 2^220212331 is an apocalyptic number.

220212331 is a deficient number, since it is larger than the sum of its proper divisors (5335189).

220212331 is a wasteful number, since it uses less digits than its factorization.

220212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4905.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 220212331 is about 14839.5529245325. The cubic root of 220212331 is about 603.8752236659.

Adding to 220212331 its reverse (133212022), we get a palindrome (353424353).

The spelling of 220212331 in words is "two hundred twenty million, two hundred twelve thousand, three hundred thirty-one".