210212001200121 has 32 divisors (see below), whose sum is σ = 281744181024768. Its totient is φ = 139412618841600.

The previous prime is 210212001200081. The next prime is 210212001200137. The reversal of 210212001200121 is 121002100212012.

It is not a de Polignac number, because 210212001200121 - 2⁴⁵ = 175027629111289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210212001200121.

It is not an unprimeable number, because it can be changed into a prime (210212006200121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 998996521 + ... + 999206921.

It is an arithmetic number, because the mean of its divisors is an integer number (8804505657024).

Almost surely, 2^{210212001200121} is an apocalyptic number.

It is an amenable number.

210212001200121 is a deficient number, since it is larger than the sum of its proper divisors (71532179824647).

210212001200121 is a wasteful number, since it uses less digits than its factorization.

210212001200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212821.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210212001200121 its reverse (121002100212012), we get a palindrome (331214101412133).

The spelling of 210212001200121 in words is "two hundred ten trillion, two hundred twelve billion, one million, two hundred thousand, one hundred twenty-one".