210022022222021 has 2 divisors, whose sum is σ = 210022022222022. Its totient is φ = 210022022222020.

The previous prime is 210022022222009. The next prime is 210022022222069. The reversal of 210022022222021 is 120222220220012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105399584944900 + 104622437277121 = 10266430^2 + 10228511^2 .

It is a cyclic number.

It is not a de Polignac number, because 210022022222021 - 2⁴² = 205623975710917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210022022221984 and 210022022222002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210022022228021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105011011111010 + 105011011111011.

It is an arithmetic number, because the mean of its divisors is an integer number (105011011111011).

Almost surely, 2^{210022022222021} is an apocalyptic number.

It is an amenable number.

210022022222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

210022022222021 is an equidigital number, since it uses as much as digits as its factorization.

210022022222021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 210022022222021 its reverse (120222220220012), we get a palindrome (330244242442033).

The spelling of 210022022222021 in words is "two hundred ten trillion, twenty-two billion, twenty-two million, two hundred twenty-two thousand, twenty-one".