210022012022121 has 96 divisors (see below), whose sum is σ = 336301933968000. Its totient is φ = 125502505565184.

The previous prime is 210022012022111. The next prime is 210022012022149. The reversal of 210022012022121 is 121220210220012.

It is a happy number.

210022012022121 is a `hidden beast` number, since 2 + 100 + 220 + 120 + 221 + 2 + 1 = 666.

It is not a de Polignac number, because 210022012022121 - 2⁶ = 210022012022057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210022012022094 and 210022012022103.

It is not an unprimeable number, because it can be changed into a prime (210022012022111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 625872235 + ... + 626207711.

It is an arithmetic number, because the mean of its divisors is an integer number (3503145145500).

Almost surely, 2^{210022012022121} is an apocalyptic number.

It is an amenable number.

210022012022121 is a deficient number, since it is larger than the sum of its proper divisors (126279921945879).

210022012022121 is a wasteful number, since it uses less digits than its factorization.

210022012022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336663 (or 336660 counting only the distinct ones).

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

Adding to 210022012022121 its reverse (121220210220012), we get a palindrome (331242222242133).

The spelling of 210022012022121 in words is "two hundred ten trillion, twenty-two billion, twelve million, twenty-two thousand, one hundred twenty-one".