11111002102020 has 48 divisors (see below), whose sum is σ = 31170519612288. Its totient is φ = 2957246872320.

The previous prime is 11111002102007. The next prime is 11111002102043. The reversal of 11111002102020 is 2020120011111.

It is a super-2 number, since 2×11111002102020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11111002101987 and 11111002102005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177687904 + ... + 177750423.

It is an arithmetic number, because the mean of its divisors is an integer number (649385825256).

Almost surely, 2^{11111002102020} is an apocalyptic number.

11111002102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111002102020 is an abundant number, since it is smaller than the sum of its proper divisors (20059517510268).

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

11111002102020 is a wasteful number, since it uses less digits than its factorization.

11111002102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355438860 (or 355438858 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11111002102020 its reverse (2020120011111), we get a palindrome (13131122113131).

The spelling of 11111002102020 in words is "eleven trillion, one hundred eleven billion, two million, one hundred two thousand, twenty".