210222012011121 has 24 divisors (see below), whose sum is σ = 333787622145120. Its totient is φ = 126434705342400.

The previous prime is 210222012011111. The next prime is 210222012011257. The reversal of 210222012011121 is 121110210222012.

210222012011121 is a `hidden beast` number, since 210 + 2 + 220 + 1 + 201 + 11 + 21 = 666.

It is not a de Polignac number, because 210222012011121 - 2¹³ = 210222012002929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210222012011094 and 210222012011103.

It is not an unprimeable number, because it can be changed into a prime (210222012011111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8104775836 + ... + 8104801773.

It is an arithmetic number, because the mean of its divisors is an integer number (13907817589380).

Almost surely, 2^{210222012011121} is an apocalyptic number.

It is an amenable number.

210222012011121 is a deficient number, since it is larger than the sum of its proper divisors (123565610133999).

210222012011121 is a wasteful number, since it uses less digits than its factorization.

210222012011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16209577757 (or 16209577754 counting only the distinct ones).

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

Adding to 210222012011121 its reverse (121110210222012), we get a palindrome (331332222233133).

The spelling of 210222012011121 in words is "two hundred ten trillion, two hundred twenty-two billion, twelve million, eleven thousand, one hundred twenty-one".