2202201002021 has 4 divisors (see below), whose sum is σ = 2331742237452. Its totient is φ = 2072659766592.

The previous prime is 2202201002011. The next prime is 2202201002041. The reversal of 2202201002021 is 1202001022022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 808361029921 + 1393839972100 = 899089^2 + 1180610^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202201002021 - 2¹⁴ = 2202200985637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2202201001987 and 2202201002005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202201002011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64770617690 + ... + 64770617723.

It is an arithmetic number, because the mean of its divisors is an integer number (582935559363).

Almost surely, 2^{2202201002021} is an apocalyptic number.

It is an amenable number.

2202201002021 is a deficient number, since it is larger than the sum of its proper divisors (129541235431).

2202201002021 is a wasteful number, since it uses less digits than its factorization.

2202201002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129541235430.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2202201002021 its reverse (1202001022022), we get a palindrome (3404202024043).

The spelling of 2202201002021 in words is "two trillion, two hundred two billion, two hundred one million, two thousand, twenty-one".