121233220220010 has 64 divisors (see below), whose sum is σ = 294651765434880. Its totient is φ = 31919125784640.

The previous prime is 121233220219999. The next prime is 121233220220011. The reversal of 121233220220010 is 10022022332121.

It is not an unprimeable number, because it can be changed into a prime (121233220220011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11485656 + ... + 19349075.

It is an arithmetic number, because the mean of its divisors is an integer number (4603933834920).

Almost surely, 2^{121233220220010} is an apocalyptic number.

121233220220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121233220220010 is an abundant number, since it is smaller than the sum of its proper divisors (173418545214870).

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

121233220220010 is a wasteful number, since it uses less digits than its factorization.

121233220220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30836403.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 121233220220010 its reverse (10022022332121), we get a palindrome (131255242552131).

The spelling of 121233220220010 in words is "one hundred twenty-one trillion, two hundred thirty-three billion, two hundred twenty million, two hundred twenty thousand, ten".