20000121222102 has 64 divisors (see below), whose sum is σ = 48125757504000. Its totient is φ = 5412985574400.

The previous prime is 20000121222047. The next prime is 20000121222113. The reversal of 20000121222102 is 20122212100002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6120102 + ... + 8800902.

It is an arithmetic number, because the mean of its divisors is an integer number (751964961000).

Almost surely, 2^{20000121222102} is an apocalyptic number.

20000121222102 is an abundant number, since it is smaller than the sum of its proper divisors (28125636281898).

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

20000121222102 is a wasteful number, since it uses less digits than its factorization.

20000121222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690181.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20000121222102 its reverse (20122212100002), we get a palindrome (40122333322104).

The spelling of 20000121222102 in words is "twenty trillion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred two".