121122121220202 has 8 divisors (see below), whose sum is σ = 242244242440416. Its totient is φ = 40374040406732.

The previous prime is 121122121220189. The next prime is 121122121220213. The reversal of 121122121220202 is 202022121221121.

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

121122121220202 is an admirable number.

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, 10093510101678 + ... + 10093510101689.

It is an arithmetic number, because the mean of its divisors is an integer number (30280530305052).

Almost surely, 2^{121122121220202} is an apocalyptic number.

121122121220202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121122121220202 is a wasteful number, since it uses less digits than its factorization.

121122121220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20187020203372.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121122121220202 its reverse (202022121221121), we get a palindrome (323144242441323).

The spelling of 121122121220202 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred twenty thousand, two hundred two".