111022212020 has 24 divisors (see below), whose sum is σ = 233280633768. Its totient is φ = 44383363200.

The previous prime is 111022212011. The next prime is 111022212029. The reversal of 111022212020 is 20212220111.

It is an interprime number because it is at equal distance from previous prime (111022212011) and next prime (111022212029).

It can be written as a sum of positive squares in 4 ways, for example, as 2309571364 + 108712640656 = 48058^2 + 329716^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111022211986 and 111022212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111022212029) 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, 1559411 + ... + 1629050.

It is an arithmetic number, because the mean of its divisors is an integer number (9720026407).

Almost surely, 2^111022212020 is an apocalyptic number.

111022212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111022212020 is an abundant number, since it is smaller than the sum of its proper divisors (122258421748).

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

111022212020 is a wasteful number, since it uses less digits than its factorization.

111022212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3190211 (or 3190209 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 111022212020 its reverse (20212220111), we get a palindrome (131234432131).

The spelling of 111022212020 in words is "one hundred eleven billion, twenty-two million, two hundred twelve thousand, twenty".