2202201220021 has 8 divisors (see below), whose sum is σ = 2402424228384. Its totient is φ = 2001982027920.

The previous prime is 2202201220019. The next prime is 2202201220057. The reversal of 2202201220021 is 1200221022022.

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 2202201220021 - 2¹ = 2202201220019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2202201219977 and 2202201220004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202201220421) 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, 327351 + ... + 2124043.

It is an arithmetic number, because the mean of its divisors is an integer number (300303028548).

Almost surely, 2^{2202201220021} is an apocalyptic number.

It is an amenable number.

2202201220021 is a deficient number, since it is larger than the sum of its proper divisors (200223008363).

2202201220021 is a wasteful number, since it uses less digits than its factorization.

2202201220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908131.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2202201220021 its reverse (1200221022022), we get a palindrome (3402422242043).

The spelling of 2202201220021 in words is "two trillion, two hundred two billion, two hundred one million, two hundred twenty thousand, twenty-one".