111022002020 has 24 divisors (see below), whose sum is σ = 236968275768. Its totient is φ = 43680787200.

The previous prime is 111022002011. The next prime is 111022002067. The reversal of 111022002020 is 20200220111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2980941604 + 108041060416 = 54598^2 + 328696^2 .

It is a super-3 number, since 3×111022002020³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111022001992 and 111022002010.

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, 45499601 + ... + 45502040.

It is an arithmetic number, because the mean of its divisors is an integer number (9873678157).

Almost surely, 2^111022002020 is an apocalyptic number.

111022002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111022002020 is an abundant number, since it is smaller than the sum of its proper divisors (125946273748).

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

111022002020 is a wasteful number, since it uses less digits than its factorization.

111022002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91001711 (or 91001709 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 111022002020 its reverse (20200220111), we get a palindrome (131222222131).

The spelling of 111022002020 in words is "one hundred eleven billion, twenty-two million, two thousand, twenty".