22121121002012 has 12 divisors (see below), whose sum is σ = 39960734713536. Its totient is φ = 10703768226720.

The previous prime is 22121121001957. The next prime is 22121121002023. The reversal of 22121121002012 is 21020012112122.

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, 89198068433 + ... + 89198068680.

It is an arithmetic number, because the mean of its divisors is an integer number (3330061226128).

Almost surely, 2^{22121121002012} is an apocalyptic number.

It is an amenable number.

22121121002012 is a deficient number, since it is larger than the sum of its proper divisors (17839613711524).

22121121002012 is a wasteful number, since it uses less digits than its factorization.

22121121002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178396137148 (or 178396137146 counting only the distinct ones).

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

Adding to 22121121002012 its reverse (21020012112122), we get a palindrome (43141133114134).

The spelling of 22121121002012 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred twenty-one million, two thousand, twelve".