1222020342021 has 16 divisors (see below), whose sum is σ = 1656189497088. Its totient is φ = 801267614400.

The previous prime is 1222020342017. The next prime is 1222020342043. The reversal of 1222020342021 is 1202430202221.

It is not a de Polignac number, because 1222020342021 - 2² = 1222020342017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222020342421) 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, 2412691 + ... + 2874911.

It is an arithmetic number, because the mean of its divisors is an integer number (103511843568).

Almost surely, 2^{1222020342021} is an apocalyptic number.

It is an amenable number.

1222020342021 is a deficient number, since it is larger than the sum of its proper divisors (434169155067).

1222020342021 is a wasteful number, since it uses less digits than its factorization.

1222020342021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476732.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 1222020342021 its reverse (1202430202221), we get a palindrome (2424450544242).

The spelling of 1222020342021 in words is "one trillion, two hundred twenty-two billion, twenty million, three hundred forty-two thousand, twenty-one".