121212021201202 has 8 divisors (see below), whose sum is σ = 182144455558956. Its totient is φ = 60497202681552.

The previous prime is 121212021201181. The next prime is 121212021201211. The reversal of 121212021201202 is 202102120212121.

It can be written as a sum of positive squares in 2 ways, for example, as 120543732936081 + 668288265121 = 10979241^2 + 817489^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 121212021201202.

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, 54403958133 + ... + 54403960360.

Almost surely, 2^{121212021201202} is an apocalyptic number.

121212021201202 is a deficient number, since it is larger than the sum of its proper divisors (60932434357754).

121212021201202 is a wasteful number, since it uses less digits than its factorization.

121212021201202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108807919052.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121212021201202 its reverse (202102120212121), we get a palindrome (323314141413323).

The spelling of 121212021201202 in words is "one hundred twenty-one trillion, two hundred twelve billion, twenty-one million, two hundred one thousand, two hundred two".