201110021212 has 12 divisors (see below), whose sum is σ = 352118258856. Its totient is φ = 100504804400.

The previous prime is 201110021197. The next prime is 201110021227. The reversal of 201110021212 is 212120011102.

It is an interprime number because it is at equal distance from previous prime (201110021197) and next prime (201110021227).

It is a junction number, because it is equal to n+sod(n) for n = 201110021192 and 201110021201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12542539 + ... + 12558562.

It is an arithmetic number, because the mean of its divisors is an integer number (29343188238).

Almost surely, 2^201110021212 is an apocalyptic number.

It is an amenable number.

201110021212 is a deficient number, since it is larger than the sum of its proper divisors (151008237644).

201110021212 is a wasteful number, since it uses less digits than its factorization.

201110021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25103108 (or 25103106 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201110021212 its reverse (212120011102), we get a palindrome (413230032314).

The spelling of 201110021212 in words is "two hundred one billion, one hundred ten million, twenty-one thousand, two hundred twelve".