210022022012121 has 48 divisors (see below), whose sum is σ = 332016831619200. Its totient is φ = 126873640776960.

The previous prime is 210022022012093. The next prime is 210022022012129. The reversal of 210022022012121 is 121210220220012.

It is a happy number.

210022022012121 is a `hidden beast` number, since 2 + 10 + 0 + 220 + 220 + 1 + 212 + 1 = 666.

It is not a de Polignac number, because 210022022012121 - 2²² = 210022017817817 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 210022022012094 and 210022022012103.

It is not an unprimeable number, because it can be changed into a prime (210022022012129) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 90868005 + ... + 93150621.

It is an arithmetic number, because the mean of its divisors is an integer number (6917017325400).

Almost surely, 2^{210022022012121} is an apocalyptic number.

It is an amenable number.

210022022012121 is a deficient number, since it is larger than the sum of its proper divisors (121994809607079).

210022022012121 is a wasteful number, since it uses less digits than its factorization.

210022022012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285646 (or 2285643 counting only the distinct ones).

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

Adding to 210022022012121 its reverse (121210220220012), we get a palindrome (331232242232133).

The spelling of 210022022012121 in words is "two hundred ten trillion, twenty-two billion, twenty-two million, twelve thousand, one hundred twenty-one".