200121222010012 has 24 divisors (see below), whose sum is σ = 350380726085376. Its totient is φ = 100012448245248.

The previous prime is 200121222010007. The next prime is 200121222010019. The reversal of 200121222010012 is 210010222121002.

It is a happy number.

It is a super-2 number, since 2×200121222010012² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121222010019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158182068 + ... + 159442180.

It is an arithmetic number, because the mean of its divisors is an integer number (14599196920224).

Almost surely, 2^{200121222010012} is an apocalyptic number.

It is an amenable number.

200121222010012 is a deficient number, since it is larger than the sum of its proper divisors (150259504075364).

200121222010012 is a wasteful number, since it uses less digits than its factorization.

200121222010012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279197 (or 1279195 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 200121222010012 its reverse (210010222121002), we get a palindrome (410131444131014).

The spelling of 200121222010012 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twenty-two million, ten thousand, twelve".