11111222002020 has 96 divisors (see below), whose sum is σ = 35557224665088. Its totient is φ = 2539614010752.

The previous prime is 11111222001977. The next prime is 11111222002073. The reversal of 11111222002020 is 2020022211111.

It is a super-3 number, since 3×11111222002020³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11220729 + ... + 12170751.

It is an arithmetic number, because the mean of its divisors is an integer number (370387756928).

Almost surely, 2^{11111222002020} is an apocalyptic number.

11111222002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111222002020 is an abundant number, since it is smaller than the sum of its proper divisors (24446002663068).

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

11111222002020 is a wasteful number, since it uses less digits than its factorization.

11111222002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977889 (or 977887 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11111222002020 its reverse (2020022211111), we get a palindrome (13131244213131).

The spelling of 11111222002020 in words is "eleven trillion, one hundred eleven billion, two hundred twenty-two million, two thousand, twenty".