2020102122221 has 16 divisors (see below), whose sum is σ = 2039739992064. Its totient is φ = 2000525615424.

The previous prime is 2020102122209. The next prime is 2020102122253. The reversal of 2020102122221 is 1222212010202.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020102122221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020102122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020102122281) 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, 221182571 + ... + 221191703.

It is an arithmetic number, because the mean of its divisors is an integer number (127483749504).

Almost surely, 2^{2020102122221} is an apocalyptic number.

It is an amenable number.

2020102122221 is a deficient number, since it is larger than the sum of its proper divisors (19637869843).

2020102122221 is a wasteful number, since it uses less digits than its factorization.

2020102122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12260.

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

Adding to 2020102122221 its reverse (1222212010202), we get a palindrome (3242314132423).

The spelling of 2020102122221 in words is "two trillion, twenty billion, one hundred two million, one hundred twenty-two thousand, two hundred twenty-one".