200121211112012 has 24 divisors (see below), whose sum is σ = 353920649447904. Its totient is φ = 99001597542912.

The previous prime is 200121211111973. The next prime is 200121211112071. The reversal of 200121211112012 is 210211112121002.

It is a super-2 number, since 2×200121211112012² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70097063 + ... + 72896094.

It is an arithmetic number, because the mean of its divisors is an integer number (14746693726996).

Almost surely, 2^{200121211112012} is an apocalyptic number.

It is an amenable number.

200121211112012 is a deficient number, since it is larger than the sum of its proper divisors (153799438335892).

200121211112012 is a wasteful number, since it uses less digits than its factorization.

200121211112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142996865 (or 142996863 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 200121211112012 its reverse (210211112121002), we get a palindrome (410332323233014).

The spelling of 200121211112012 in words is "two hundred trillion, one hundred twenty-one billion, two hundred eleven million, one hundred twelve thousand, twelve".