2111201122020 has 24 divisors (see below), whose sum is σ = 5911363141824. Its totient is φ = 562986965856.

The previous prime is 2111201122001. The next prime is 2111201122021. The reversal of 2111201122020 is 202211021112.

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

It is not an unprimeable number, because it can be changed into a prime (2111201122021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17593342624 + ... + 17593342743.

It is an arithmetic number, because the mean of its divisors is an integer number (246306797576).

Almost surely, 2^{2111201122020} is an apocalyptic number.

2111201122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111201122020 is an abundant number, since it is smaller than the sum of its proper divisors (3800162019804).

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

2111201122020 is a wasteful number, since it uses less digits than its factorization.

2111201122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35186685379 (or 35186685377 counting only the distinct ones).

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

Adding to 2111201122020 its reverse (202211021112), we get a palindrome (2313412143132).

The spelling of 2111201122020 in words is "two trillion, one hundred eleven billion, two hundred one million, one hundred twenty-two thousand, twenty".