2122123212020 has 48 divisors (see below), whose sum is σ = 5197036454400. Its totient is φ = 727585098912.

The previous prime is 2122123211969. The next prime is 2122123212029. The reversal of 2122123212020 is 202123212212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2122123211983 and 2122123212001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122123212029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154666844 + ... + 154680563.

It is an arithmetic number, because the mean of its divisors is an integer number (108271592800).

Almost surely, 2^{2122123212020} is an apocalyptic number.

2122123212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122123212020 is an abundant number, since it is smaller than the sum of its proper divisors (3074913242380).

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

2122123212020 is a wasteful number, since it uses less digits than its factorization.

2122123212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309347437 (or 309347421 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2122123212020 its reverse (202123212212), we get a palindrome (2324246424232).

The spelling of 2122123212020 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-three million, two hundred twelve thousand, twenty".