2302212021 has 16 divisors (see below), whose sum is σ = 3091271040. Its totient is φ = 1524019520.

The previous prime is 2302212013. The next prime is 2302212043. The reversal of 2302212021 is 1202122032.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2302212021 - 2³ = 2302212013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2302212221) 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, 246391 + ... + 255563.

It is an arithmetic number, because the mean of its divisors is an integer number (193204440).

Almost surely, 2^2302212021 is an apocalyptic number.

It is an amenable number.

2302212021 is a deficient number, since it is larger than the sum of its proper divisors (789059019).

2302212021 is a wasteful number, since it uses less digits than its factorization.

2302212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9756.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2302212021 is about 47981.3716039881. The cubic root of 2302212021 is about 1320.4291574043.

Adding to 2302212021 its reverse (1202122032), we get a palindrome (3504334053).

The spelling of 2302212021 in words is "two billion, three hundred two million, two hundred twelve thousand, twenty-one".