121202212020202 has 16 divisors (see below), whose sum is σ = 181837612922112. Its totient is φ = 60589675384560.

The previous prime is 121202212020193. The next prime is 121202212020217. The reversal of 121202212020202 is 202020212202121.

It is a super-2 number, since 2×121202212020202² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121202212020202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252830863 + ... + 253309789.

It is an arithmetic number, because the mean of its divisors is an integer number (11364850807632).

Almost surely, 2^{121202212020202} is an apocalyptic number.

121202212020202 is a deficient number, since it is larger than the sum of its proper divisors (60635400901910).

121202212020202 is a wasteful number, since it uses less digits than its factorization.

121202212020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502533.

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

Adding to 121202212020202 its reverse (202020212202121), we get a palindrome (323222424222323).

The spelling of 121202212020202 in words is "one hundred twenty-one trillion, two hundred two billion, two hundred twelve million, twenty thousand, two hundred two".