10021221120211 has 12 divisors (see below), whose sum is σ = 11657401981680. Its totient is φ = 8589571588080.

The previous prime is 10021221120107. The next prime is 10021221120223. The reversal of 10021221120211 is 11202112212001.

It is a de Polignac number, because none of the positive numbers 2^k-10021221120211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10021221120271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11038210 + ... + 11911528.

It is an arithmetic number, because the mean of its divisors is an integer number (971450165140).

Almost surely, 2^{10021221120211} is an apocalyptic number.

10021221120211 is a deficient number, since it is larger than the sum of its proper divisors (1636180861469).

10021221120211 is an equidigital number, since it uses as much as digits as its factorization.

10021221120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107514 (or 1107507 counting only the distinct ones).

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

Adding to 10021221120211 its reverse (11202112212001), we get a palindrome (21223333332212).

The spelling of 10021221120211 in words is "ten trillion, twenty-one billion, two hundred twenty-one million, one hundred twenty thousand, two hundred eleven".