121111202020202 has 8 divisors (see below), whose sum is σ = 181669061488896. Its totient is φ = 60554848190572.

The previous prime is 121111202020189. The next prime is 121111202020223. The reversal of 121111202020202 is 202020202111121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×121111202020202² (a number of 29 digits) contains 22 as substring.

121111202020202 is a modest number, since divided by 2020202 gives 1211112 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376208648 + ... + 376530435.

It is an arithmetic number, because the mean of its divisors is an integer number (22708632686112).

Almost surely, 2^{121111202020202} is an apocalyptic number.

121111202020202 is a deficient number, since it is larger than the sum of its proper divisors (60557859468694).

121111202020202 is an equidigital number, since it uses as much as digits as its factorization.

121111202020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752819532.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121111202020202 its reverse (202020202111121), we get a palindrome (323131404131323).

The spelling of 121111202020202 in words is "one hundred twenty-one trillion, one hundred eleven billion, two hundred two million, twenty thousand, two hundred two".