2111121022020 has 24 divisors (see below), whose sum is σ = 5911138861824. Its totient is φ = 562965605856.

The previous prime is 2111121022001. The next prime is 2111121022033. The reversal of 2111121022020 is 202201211112.

It is a super-2 number, since 2×2111121022020² (a number of 25 digits) contains 22 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 7 ways as a sum of consecutive naturals, for example, 17592675124 + ... + 17592675243.

It is an arithmetic number, because the mean of its divisors is an integer number (246297452576).

Almost surely, 2^{2111121022020} is an apocalyptic number.

2111121022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111121022020 is an abundant number, since it is smaller than the sum of its proper divisors (3800017839804).

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

2111121022020 is a wasteful number, since it uses less digits than its factorization.

2111121022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35185350379 (or 35185350377 counting only the distinct ones).

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

Adding to 2111121022020 its reverse (202201211112), we get a palindrome (2313322233132).

The spelling of 2111121022020 in words is "two trillion, one hundred eleven billion, one hundred twenty-one million, twenty-two thousand, twenty".