220102111212 has 24 divisors (see below), whose sum is σ = 513825014976. Its totient is φ = 73331167248.

The previous prime is 220102111199. The next prime is 220102111213. The reversal of 220102111212 is 212111201022.

It is a super-2 number, since 2×220102111212² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220102111191 and 220102111200.

It is not an unprimeable number, because it can be changed into a prime (220102111213) 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, 4500058 + ... + 4548705.

It is an arithmetic number, because the mean of its divisors is an integer number (21409375624).

Almost surely, 2^220102111212 is an apocalyptic number.

It is an amenable number.

220102111212 is an abundant number, since it is smaller than the sum of its proper divisors (293722903764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220102111212 is a wasteful number, since it uses less digits than its factorization.

220102111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9050797 (or 9050795 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 220102111212 its reverse (212111201022), we get a palindrome (432213312234).

The spelling of 220102111212 in words is "two hundred twenty billion, one hundred two million, one hundred eleven thousand, two hundred twelve".