21201110022212 has 24 divisors (see below), whose sum is σ = 38587151847552. Its totient is φ = 10184292266400.

The previous prime is 21201110022173. The next prime is 21201110022229. The reversal of 21201110022212 is 21222001110212.

It is a super-3 number, since 3×21201110022212³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 1010335964 + ... + 1010356947.

It is an arithmetic number, because the mean of its divisors is an integer number (1607797993648).

Almost surely, 2^{21201110022212} is an apocalyptic number.

It is an amenable number.

21201110022212 is a deficient number, since it is larger than the sum of its proper divisors (17386041825340).

21201110022212 is a wasteful number, since it uses less digits than its factorization.

21201110022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020693019 (or 2020693017 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21201110022212 its reverse (21222001110212), we get a palindrome (42423111132424).

The spelling of 21201110022212 in words is "twenty-one trillion, two hundred one billion, one hundred ten million, twenty-two thousand, two hundred twelve".