12121111010202 has 8 divisors (see below), whose sum is σ = 24242222020416. Its totient is φ = 4040370336732.

The previous prime is 12121111010189. The next prime is 12121111010231. The reversal of 12121111010202 is 20201011112121.

It is a happy number.

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

12121111010202 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, 1010092584178 + ... + 1010092584189.

It is an arithmetic number, because the mean of its divisors is an integer number (3030277752552).

Almost surely, 2^{12121111010202} is an apocalyptic number.

12121111010202 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.

12121111010202 is a wasteful number, since it uses less digits than its factorization.

12121111010202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020185168372.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12121111010202 its reverse (20201011112121), we get a palindrome (32322122122323).

The spelling of 12121111010202 in words is "twelve trillion, one hundred twenty-one billion, one hundred eleven million, ten thousand, two hundred two".