12021221211010 has 64 divisors (see below), whose sum is σ = 23623400577024. Its totient is φ = 4368003883200.

The previous prime is 12021221211001. The next prime is 12021221211019. The reversal of 12021221211010 is 1011212212021.

It is an interprime number because it is at equal distance from previous prime (12021221211001) and next prime (12021221211019).

It is not an unprimeable number, because it can be changed into a prime (12021221211019) 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, 1322316565 + ... + 1322325655.

It is an arithmetic number, because the mean of its divisors is an integer number (369115634016).

Almost surely, 2^{12021221211010} is an apocalyptic number.

12021221211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021221211010 is a deficient number, since it is larger than the sum of its proper divisors (11602179366014).

12021221211010 is a wasteful number, since it uses less digits than its factorization.

12021221211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16999.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12021221211010 its reverse (1011212212021), we get a palindrome (13032433423031).

The spelling of 12021221211010 in words is "twelve trillion, twenty-one billion, two hundred twenty-one million, two hundred eleven thousand, ten".