2101221202112 has 28 divisors (see below), whose sum is σ = 4170322983696. Its totient is φ = 1050431159040.

The previous prime is 2101221202057. The next prime is 2101221202117. The reversal of 2101221202112 is 2112021221012.

It is not an unprimeable number, because it can be changed into a prime (2101221202117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2425748 + ... + 3175955.

Almost surely, 2^{2101221202112} is an apocalyptic number.

It is an amenable number.

2101221202112 is a deficient number, since it is larger than the sum of its proper divisors (2069101781584).

2101221202112 is an equidigital number, since it uses as much as digits as its factorization.

2101221202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5607576 (or 5607566 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2101221202112 its reverse (2112021221012), we get a palindrome (4213242423124).

The spelling of 2101221202112 in words is "two trillion, one hundred one billion, two hundred twenty-one million, two hundred two thousand, one hundred twelve".