2020012122221 has 8 divisors (see below), whose sum is σ = 2047742037120. Its totient is φ = 1992336211008.

The previous prime is 2020012122199. The next prime is 2020012122269. The reversal of 2020012122221 is 1222212100202.

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 2020012122221 - 2¹⁸ = 2020011860077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2020012122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020012128221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13425596 + ... + 13575221.

It is an arithmetic number, because the mean of its divisors is an integer number (255967754640).

Almost surely, 2^{2020012122221} is an apocalyptic number.

It is an amenable number.

2020012122221 is a deficient number, since it is larger than the sum of its proper divisors (27729914899).

2020012122221 is an equidigital number, since it uses as much as digits as its factorization.

2020012122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27001843.

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

Adding to 2020012122221 its reverse (1222212100202), we get a palindrome (3242224222423).

The spelling of 2020012122221 in words is "two trillion, twenty billion, twelve million, one hundred twenty-two thousand, two hundred twenty-one".