210220000210121 has 16 divisors (see below), whose sum is σ = 233218698854400. Its totient is φ = 187869289405200.

The previous prime is 210220000210093. The next prime is 210220000210159. The reversal of 210220000210121 is 121012000022012.

It is a cyclic number.

It is not a de Polignac number, because 210220000210121 - 2⁶ = 210220000210057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210220000210096 and 210220000210105.

It is not an unprimeable number, because it can be changed into a prime (210220000210021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328956776 + ... + 329595206.

It is an arithmetic number, because the mean of its divisors is an integer number (14576168678400).

Almost surely, 2^{210220000210121} is an apocalyptic number.

It is an amenable number.

210220000210121 is a deficient number, since it is larger than the sum of its proper divisors (22998698644279).

210220000210121 is a wasteful number, since it uses less digits than its factorization.

210220000210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145860.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210220000210121 its reverse (121012000022012), we get a palindrome (331232000232133).

The spelling of 210220000210121 in words is "two hundred ten trillion, two hundred twenty billion, two hundred ten thousand, one hundred twenty-one".