2101221234311 has 8 divisors (see below), whose sum is σ = 2103445272048. Its totient is φ = 2098998216000.

The previous prime is 2101221234283. The next prime is 2101221234341. The reversal of 2101221234311 is 1134321221012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101221234311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101221234341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3905531 + ... + 4410851.

It is an arithmetic number, because the mean of its divisors is an integer number (262930659006).

Almost surely, 2^{2101221234311} is an apocalyptic number.

2101221234311 is a deficient number, since it is larger than the sum of its proper divisors (2224037737).

2101221234311 is a wasteful number, since it uses less digits than its factorization.

2101221234311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509713.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 2101221234311 its reverse (1134321221012), we get a palindrome (3235542455323).

The spelling of 2101221234311 in words is "two trillion, one hundred one billion, two hundred twenty-one million, two hundred thirty-four thousand, three hundred eleven".