220212031 has 16 divisors (see below), whose sum is σ = 242049024. Its totient is φ = 199118304.

The previous prime is 220212029. The next prime is 220212037. The reversal of 220212031 is 130212022.

220212031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 220212031 - 2¹ = 220212029 is a prime.

It is a super-2 number, since 2×220212031² = 96986677194289922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220212037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136230 + ... + 137836.

It is an arithmetic number, because the mean of its divisors is an integer number (15128064).

Almost surely, 2^220212031 is an apocalyptic number.

220212031 is a deficient number, since it is larger than the sum of its proper divisors (21836993).

220212031 is a wasteful number, since it uses less digits than its factorization.

220212031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 220212031 is about 14839.5428164078. The cubic root of 220212031 is about 603.8749494417.

Adding to 220212031 its reverse (130212022), we get a palindrome (350424053).

Subtracting from 220212031 its reverse (130212022), we obtain a palindrome (90000009).

The spelling of 220212031 in words is "two hundred twenty million, two hundred twelve thousand, thirty-one".