122220031 has 8 divisors (see below), whose sum is σ = 125468480. Its totient is φ = 119014272.

The previous prime is 122220019. The next prime is 122220037. The reversal of 122220031 is 130022221.

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 122220031 - 2¹³ = 122211839 is a prime.

It is a super-2 number, since 2×122220031² = 29875471955281922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122219993 and 122220020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122220037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4830 + ... + 16363.

It is an arithmetic number, because the mean of its divisors is an integer number (15683560).

Almost surely, 2^122220031 is an apocalyptic number.

122220031 is a deficient number, since it is larger than the sum of its proper divisors (3248449).

122220031 is an equidigital number, since it uses as much as digits as its factorization.

122220031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21345.

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

The square root of 122220031 is about 11055.3168656534. The cubic root of 122220031 is about 496.2655519028.

Adding to 122220031 its reverse (130022221), we get a palindrome (252242252).

The spelling of 122220031 in words is "one hundred twenty-two million, two hundred twenty thousand, thirty-one".