11111000022020 has 24 divisors (see below), whose sum is σ = 23334229153368. Its totient is φ = 4444184940800.

The previous prime is 11111000021987. The next prime is 11111000022077. The reversal of 11111000022020 is 2022000011111.

It can be written as a sum of positive squares in 4 ways, for example, as 524202064324 + 10586797957696 = 724018^2 + 3253736^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11111000021992 and 11111000022010.

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, 13017791 + ... + 13845030.

It is an arithmetic number, because the mean of its divisors is an integer number (972259548057).

Almost surely, 2^{11111000022020} is an apocalyptic number.

11111000022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111000022020 is an abundant number, since it is smaller than the sum of its proper divisors (12223229131348).

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

11111000022020 is a wasteful number, since it uses less digits than its factorization.

11111000022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26883511 (or 26883509 counting only the distinct ones).

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

Adding to 11111000022020 its reverse (2022000011111), we get a palindrome (13133000033131).

The spelling of 11111000022020 in words is "eleven trillion, one hundred eleven billion, twenty-two thousand, twenty".