12121200220010 has 64 divisors (see below), whose sum is σ = 25741810575360. Its totient is φ = 4021403535360.

The previous prime is 12121200219949. The next prime is 12121200220043. The reversal of 12121200220010 is 1002200212121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23372642 + ... + 23885618.

It is an arithmetic number, because the mean of its divisors is an integer number (402215790240).

Almost surely, 2^{12121200220010} is an apocalyptic number.

12121200220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121200220010 is an abundant number, since it is smaller than the sum of its proper divisors (13620610355350).

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

12121200220010 is a wasteful number, since it uses less digits than its factorization.

12121200220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523911.

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

Adding to 12121200220010 its reverse (1002200212121), we get a palindrome (13123400432131).

The spelling of 12121200220010 in words is "twelve trillion, one hundred twenty-one billion, two hundred million, two hundred twenty thousand, ten".