2020221212021 has 8 divisors (see below), whose sum is σ = 2063270931840. Its totient is φ = 1977174254368.

The previous prime is 2020221211991. The next prime is 2020221212029. The reversal of 2020221212021 is 1202121220202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2020221212021 - 2²² = 2020217017717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020221212029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 822785 + ... + 2171961.

It is an arithmetic number, because the mean of its divisors is an integer number (257908866480).

Almost surely, 2^{2020221212021} is an apocalyptic number.

It is an amenable number.

2020221212021 is a deficient number, since it is larger than the sum of its proper divisors (43049719819).

2020221212021 is a wasteful number, since it uses less digits than its factorization.

2020221212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381083.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2020221212021 its reverse (1202121220202), we get a palindrome (3222342432223).

The spelling of 2020221212021 in words is "two trillion, twenty billion, two hundred twenty-one million, two hundred twelve thousand, twenty-one".