213220111112 has 32 divisors (see below), whose sum is σ = 402957957600. Its totient is φ = 105765631104.

The previous prime is 213220111103. The next prime is 213220111121. The reversal of 213220111112 is 211111022312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (213220111103) and next prime (213220111121).

It is a super-2 number, since 2×213220111112² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1714343 + ... + 1834505.

It is an arithmetic number, because the mean of its divisors is an integer number (12592436175).

Almost surely, 2^213220111112 is an apocalyptic number.

It is an amenable number.

213220111112 is a deficient number, since it is larger than the sum of its proper divisors (189737846488).

213220111112 is a wasteful number, since it uses less digits than its factorization.

213220111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121925 (or 121921 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 213220111112 its reverse (211111022312), we get a palindrome (424331133424).

The spelling of 213220111112 in words is "two hundred thirteen billion, two hundred twenty million, one hundred eleven thousand, one hundred twelve".