2202011021 has 4 divisors (see below), whose sum is σ = 2516584032. Its totient is φ = 1887438012.

The previous prime is 2202011017. The next prime is 2202011029. The reversal of 2202011021 is 1201102022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1201102022 = 2 ⋅600551011.

It is a cyclic number.

It is not a de Polignac number, because 2202011021 - 2² = 2202011017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2202010993 and 2202011011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202011029) 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, 157286495 + ... + 157286508.

It is an arithmetic number, because the mean of its divisors is an integer number (629146008).

Almost surely, 2^2202011021 is an apocalyptic number.

It is an amenable number.

2202011021 is a deficient number, since it is larger than the sum of its proper divisors (314573011).

2202011021 is an equidigital number, since it uses as much as digits as its factorization.

2202011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314573010.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2202011021 is about 46925.5902573425. The cubic root of 2202011021 is about 1300.9876165738.

Adding to 2202011021 its reverse (1201102022), we get a palindrome (3403113043).

The spelling of 2202011021 in words is "two billion, two hundred two million, eleven thousand, twenty-one".