200121220212202 has 16 divisors (see below), whose sum is σ = 300370233945600. Its totient is φ = 99997825072320.

The previous prime is 200121220212197. The next prime is 200121220212247. The reversal of 200121220212202 is 202212022121002.

It is a self number, because there is not a number n which added to its sum of digits gives 200121220212202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20727874 + ... + 28807762.

It is an arithmetic number, because the mean of its divisors is an integer number (18773139621600).

Almost surely, 2^{200121220212202} is an apocalyptic number.

200121220212202 is a deficient number, since it is larger than the sum of its proper divisors (100249013733398).

200121220212202 is a wasteful number, since it uses less digits than its factorization.

200121220212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8087661.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 200121220212202 its reverse (202212022121002), we get a palindrome (402333242333204).

The spelling of 200121220212202 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twenty million, two hundred twelve thousand, two hundred two".