202221122012 has 48 divisors (see below), whose sum is σ = 458477053440. Its totient is φ = 75789058752.

The previous prime is 202221121987. The next prime is 202221122029. The reversal of 202221122012 is 210221122202.

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 15 ways as a sum of consecutive naturals, for example, 14612888 + ... + 14626719.

It is an arithmetic number, because the mean of its divisors is an integer number (9551605280).

Almost surely, 2^202221122012 is an apocalyptic number.

It is an amenable number.

202221122012 is an abundant number, since it is smaller than the sum of its proper divisors (256255931428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202221122012 is a wasteful number, since it uses less digits than its factorization.

202221122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29239650 (or 29239648 counting only the distinct ones).

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

Adding to 202221122012 its reverse (210221122202), we get a palindrome (412442244214).

The spelling of 202221122012 in words is "two hundred two billion, two hundred twenty-one million, one hundred twenty-two thousand, twelve".