210121220110002 has 128 divisors (see below), whose sum is σ = 454762558863360. Its totient is φ = 64524281902080.

The previous prime is 210121220109991. The next prime is 210121220110051. The reversal of 210121220110002 is 200011022121012.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9788092873 + ... + 9788114339.

It is an arithmetic number, because the mean of its divisors is an integer number (3552832491120).

Almost surely, 2^{210121220110002} is an apocalyptic number.

210121220110002 is an abundant number, since it is smaller than the sum of its proper divisors (244641338753358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210121220110002 is a wasteful number, since it uses less digits than its factorization.

210121220110002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27488.

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

Adding to 210121220110002 its reverse (200011022121012), we get a palindrome (410132242231014).

The spelling of 210121220110002 in words is "two hundred ten trillion, one hundred twenty-one billion, two hundred twenty million, one hundred ten thousand, two".