2020122211221 has 48 divisors (see below), whose sum is σ = 3038642800128. Its totient is φ = 1292311929600.

The previous prime is 2020122211181. The next prime is 2020122211259. The reversal of 2020122211221 is 1221122210202.

It is a happy number.

2020122211221 is a `hidden beast` number, since 20 + 201 + 2 + 221 + 1 + 221 = 666.

It is not a de Polignac number, because 2020122211221 - 2¹⁸ = 2020121949077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2020122211194 and 2020122211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020122211271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7898865 + ... + 8150601.

It is an arithmetic number, because the mean of its divisors is an integer number (63305058336).

Almost surely, 2^{2020122211221} is an apocalyptic number.

It is an amenable number.

2020122211221 is a deficient number, since it is larger than the sum of its proper divisors (1018520588907).

2020122211221 is a wasteful number, since it uses less digits than its factorization.

2020122211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252162 (or 252159 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2020122211221 its reverse (1221122210202), we get a palindrome (3241244421423).

The spelling of 2020122211221 in words is "two trillion, twenty billion, one hundred twenty-two million, two hundred eleven thousand, two hundred twenty-one".