211222120112213 has 16 divisors (see below), whose sum is σ = 247560720739200. Its totient is φ = 176443277101056.

The previous prime is 211222120112137. The next prime is 211222120112243. The reversal of 211222120112213 is 312211021222112.

It is not a de Polignac number, because 211222120112213 - 2³⁶ = 211153400635477 is a prime.

It is a super-2 number, since 2×211222120112213² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222120112243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 781306520 + ... + 781576817.

It is an arithmetic number, because the mean of its divisors is an integer number (15472545046200).

Almost surely, 2^{211222120112213} is an apocalyptic number.

It is an amenable number.

211222120112213 is a deficient number, since it is larger than the sum of its proper divisors (36338600626987).

211222120112213 is a wasteful number, since it uses less digits than its factorization.

211222120112213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562883836.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 211222120112213 its reverse (312211021222112), we get a palindrome (523433141334325).

The spelling of 211222120112213 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred twenty million, one hundred twelve thousand, two hundred thirteen".