212202221012 has 12 divisors (see below), whose sum is σ = 390898828320. Its totient is φ = 100516841496.

The previous prime is 212202220991. The next prime is 212202221027. The reversal of 212202221012 is 210122202212.

It is a happy number.

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, 1396067168 + ... + 1396067319.

It is an arithmetic number, because the mean of its divisors is an integer number (32574902360).

Almost surely, 2^212202221012 is an apocalyptic number.

It is an amenable number.

212202221012 is a deficient number, since it is larger than the sum of its proper divisors (178696607308).

212202221012 is a wasteful number, since it uses less digits than its factorization.

212202221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2792134510 (or 2792134508 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212202221012 its reverse (210122202212), we get a palindrome (422324423224).

The spelling of 212202221012 in words is "two hundred twelve billion, two hundred two million, two hundred twenty-one thousand, twelve".