210022022021 has 4 divisors (see below), whose sum is σ = 240025168032. Its totient is φ = 180018876012.

The previous prime is 210022022017. The next prime is 210022022029. The reversal of 210022022021 is 120220220012.

210022022021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 210022022021 - 2² = 210022022017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210022021987 and 210022022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210022022029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15001572995 + ... + 15001573008.

It is an arithmetic number, because the mean of its divisors is an integer number (60006292008).

Almost surely, 2^210022022021 is an apocalyptic number.

It is an amenable number.

210022022021 is a deficient number, since it is larger than the sum of its proper divisors (30003146011).

210022022021 is an equidigital number, since it uses as much as digits as its factorization.

210022022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30003146010.

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

Adding to 210022022021 its reverse (120220220012), we get a palindrome (330242242033).

The spelling of 210022022021 in words is "two hundred ten billion, twenty-two million, twenty-two thousand, twenty-one".