111022101020 has 24 divisors (see below), whose sum is σ = 233625172704. Its totient is φ = 44317647936.

The previous prime is 111022100977. The next prime is 111022101041. The reversal of 111022101020 is 20101220111.

It is a junction number, because it is equal to n+sod(n) for n = 111022100992 and 111022101010.

It is a congruent number.

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, 5689547 + ... + 5709026.

It is an arithmetic number, because the mean of its divisors is an integer number (9734382196).

Almost surely, 2^111022101020 is an apocalyptic number.

111022101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111022101020 is an abundant number, since it is smaller than the sum of its proper divisors (122603071684).

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

111022101020 is a wasteful number, since it uses less digits than its factorization.

111022101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11399069 (or 11399067 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111022101020 its reverse (20101220111), we get a palindrome (131123321131).

The spelling of 111022101020 in words is "one hundred eleven billion, twenty-two million, one hundred one thousand, twenty".