20212111424020 has 24 divisors (see below), whose sum is σ = 42446105100000. Its totient is φ = 8084716739232.

The previous prime is 20212111424009. The next prime is 20212111424027. The reversal of 20212111424020 is 2042411121202.

It is a junction number, because it is equal to n+sod(n) for n = 20212111423982 and 20212111424000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212111424027) 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, 6687670 + ... + 9227629.

It is an arithmetic number, because the mean of its divisors is an integer number (1768587712500).

Almost surely, 2^{20212111424020} is an apocalyptic number.

20212111424020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212111424020 is an abundant number, since it is smaller than the sum of its proper divisors (22233993675980).

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

20212111424020 is a wasteful number, since it uses less digits than its factorization.

20212111424020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15978807 (or 15978805 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 20212111424020 its reverse (2042411121202), we get a palindrome (22254522545222).

The spelling of 20212111424020 in words is "twenty trillion, two hundred twelve billion, one hundred eleven million, four hundred twenty-four thousand, twenty".