210022222021 has 8 divisors (see below), whose sum is σ = 221786884800. Its totient is φ = 198328645440.

The previous prime is 210022222009. The next prime is 210022222031. The reversal of 210022222021 is 120222220012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210022222021 - 2¹⁹ = 210021697733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210022221986 and 210022222004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210022222031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17765476 + ... + 17777293.

It is an arithmetic number, because the mean of its divisors is an integer number (27723360600).

Almost surely, 2^210022222021 is an apocalyptic number.

It is an amenable number.

210022222021 is a deficient number, since it is larger than the sum of its proper divisors (11764662779).

210022222021 is a wasteful number, since it uses less digits than its factorization.

210022222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35543099.

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

Adding to 210022222021 its reverse (120222220012), we get a palindrome (330244442033).

The spelling of 210022222021 in words is "two hundred ten billion, twenty-two million, two hundred twenty-two thousand, twenty-one".