1202121111102 has 8 divisors (see below), whose sum is σ = 2404242222216. Its totient is φ = 400707037032.

The previous prime is 1202121111091. The next prime is 1202121111109. The reversal of 1202121111102 is 2011111212021.

It is a happy number.

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

1202121111102 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202121111109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100176759253 + ... + 100176759264.

It is an arithmetic number, because the mean of its divisors is an integer number (300530277777).

Almost surely, 2^{1202121111102} is an apocalyptic number.

1202121111102 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.

1202121111102 is a wasteful number, since it uses less digits than its factorization.

1202121111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200353518522.

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

Adding to 1202121111102 its reverse (2011111212021), we get a palindrome (3213232323123).

The spelling of 1202121111102 in words is "one trillion, two hundred two billion, one hundred twenty-one million, one hundred eleven thousand, one hundred two".