200121222120102 has 48 divisors (see below), whose sum is σ = 476261032066560. Its totient is φ = 60448515603696.

The previous prime is 200121222120041. The next prime is 200121222120119. The reversal of 200121222120102 is 201021222121002.

It is a happy number.

200121222120102 is a `hidden beast` number, since 200 + 1 + 21 + 222 + 120 + 102 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12720639358 + ... + 12720655089.

It is an arithmetic number, because the mean of its divisors is an integer number (9922104834720).

Almost surely, 2^{200121222120102} is an apocalyptic number.

200121222120102 is an abundant number, since it is smaller than the sum of its proper divisors (276139809946458).

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

200121222120102 is a wasteful number, since it uses less digits than its factorization.

200121222120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25441294497 (or 25441294494 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 200121222120102 its reverse (201021222121002), we get a palindrome (401142444241104).

The spelling of 200121222120102 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred twenty thousand, one hundred two".