111022121012020 has 12 divisors (see below), whose sum is σ = 233146454125284. Its totient is φ = 44408848404800.

The previous prime is 111022121011987. The next prime is 111022121012119. The reversal of 111022121012020 is 20210121220111.

It can be written as a sum of positive squares in 2 ways, for example, as 42919322048656 + 68102798963364 = 6551284^2 + 8252442^2 .

It is a super-2 number, since 2×111022121012020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111022121011985 and 111022121012003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2775553025281 + ... + 2775553025320.

It is an arithmetic number, because the mean of its divisors is an integer number (19428871177107).

Almost surely, 2^{111022121012020} is an apocalyptic number.

111022121012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111022121012020 is an abundant number, since it is smaller than the sum of its proper divisors (122124333113264).

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

111022121012020 is a wasteful number, since it uses less digits than its factorization.

111022121012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5551106050610 (or 5551106050608 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111022121012020 its reverse (20210121220111), we get a palindrome (131232242232131).

The spelling of 111022121012020 in words is "one hundred eleven trillion, twenty-two billion, one hundred twenty-one million, twelve thousand, twenty".