210222010112121 has 24 divisors (see below), whose sum is σ = 362287364367840. Its totient is φ = 120126862920456.

The previous prime is 210222010112119. The next prime is 210222010112123. The reversal of 210222010112121 is 121211010222012.

210222010112121 is a `hidden beast` number, since 210 + 2 + 220 + 1 + 0 + 112 + 121 = 666.

It is an interprime number because it is at equal distance from previous prime (210222010112119) and next prime (210222010112123).

It is not a de Polignac number, because 210222010112121 - 2¹ = 210222010112119 is a prime.

It is a super-2 number, since 2×210222010112121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210222010112094 and 210222010112103.

It is not an unprimeable number, because it can be changed into a prime (210222010112123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79448982091 + ... + 79448984736.

It is an arithmetic number, because the mean of its divisors is an integer number (15095306848660).

Almost surely, 2^{210222010112121} is an apocalyptic number.

210222010112121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210222010112121 is a deficient number, since it is larger than the sum of its proper divisors (152065354255719).

210222010112121 is a wasteful number, since it uses less digits than its factorization.

210222010112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158897966850 (or 158897966837 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 210222010112121 its reverse (121211010222012), we get a palindrome (331433020334133).

The spelling of 210222010112121 in words is "two hundred ten trillion, two hundred twenty-two billion, ten million, one hundred twelve thousand, one hundred twenty-one".