220122111212 has 24 divisors (see below), whose sum is σ = 399128590560. Its totient is φ = 106097402880.

The previous prime is 220122111173. The next prime is 220122111227. The reversal of 220122111212 is 212111221022.

It is a super-2 number, since 2×220122111212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1430453 + ... + 1576844.

It is an arithmetic number, because the mean of its divisors is an integer number (16630357940).

Almost surely, 2^220122111212 is an apocalyptic number.

It is an amenable number.

220122111212 is a deficient number, since it is larger than the sum of its proper divisors (179006479348).

220122111212 is a wasteful number, since it uses less digits than its factorization.

220122111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007961 (or 3007959 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220122111212 its reverse (212111221022), we get a palindrome (432233332234).

The spelling of 220122111212 in words is "two hundred twenty billion, one hundred twenty-two million, one hundred eleven thousand, two hundred twelve".