2020212121000 has 32 divisors (see below), whose sum is σ = 4727296365480. Its totient is φ = 808084848000.

The previous prime is 2020212120967. The next prime is 2020212121021. The reversal of 2020212121000 is 1212120202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 785566687684 + 1234645433316 = 886322^2 + 1111146^2 .

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, 1010105061 + ... + 1010107060.

Almost surely, 2^{2020212121000} is an apocalyptic number.

2020212121000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020212121000 is an abundant number, since it is smaller than the sum of its proper divisors (2707084244480).

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

2020212121000 is a wasteful number, since it uses less digits than its factorization.

2020212121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020212142 (or 2020212128 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2020212121000 its reverse (1212120202), we get a palindrome (2021424241202).

The spelling of 2020212121000 in words is "two trillion, twenty billion, two hundred twelve million, one hundred twenty-one thousand".