210011222022021 has 128 divisors (see below), whose sum is σ = 380507375001600. Its totient is φ = 111743911756800.

The previous prime is 210011222022011. The next prime is 210011222022031. The reversal of 210011222022021 is 120220222110012.

It is a happy number.

210011222022021 is a `hidden beast` number, since 210 + 0 + 1 + 12 + 220 + 220 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (210011222022011) and next prime (210011222022031).

It is not a de Polignac number, because 210011222022021 - 2¹³ = 210011222013829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210011222021985 and 210011222022003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210011222022011) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 427787326 + ... + 428277968.

It is an arithmetic number, because the mean of its divisors is an integer number (2972713867200).

Almost surely, 2^{210011222022021} is an apocalyptic number.

210011222022021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210011222022021 is a deficient number, since it is larger than the sum of its proper divisors (170496152979579).

210011222022021 is a wasteful number, since it uses less digits than its factorization.

210011222022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492096 (or 492090 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210011222022021 its reverse (120220222110012), we get a palindrome (330231444132033).

The spelling of 210011222022021 in words is "two hundred ten trillion, eleven billion, two hundred twenty-two million, twenty-two thousand, twenty-one".