20121211111202 has 8 divisors (see below), whose sum is σ = 30218489593536. Its totient is φ = 10048381246692.

The previous prime is 20121211111171. The next prime is 20121211111219. The reversal of 20121211111202 is 20211111212102.

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

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, 6112152398 + ... + 6112155689.

It is an arithmetic number, because the mean of its divisors is an integer number (3777311199192).

Almost surely, 2^{20121211111202} is an apocalyptic number.

20121211111202 is a deficient number, since it is larger than the sum of its proper divisors (10097278482334).

20121211111202 is a wasteful number, since it uses less digits than its factorization.

20121211111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12224308912.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 20121211111202 its reverse (20211111212102), we get a palindrome (40332322323304).

The spelling of 20121211111202 in words is "twenty trillion, one hundred twenty-one billion, two hundred eleven million, one hundred eleven thousand, two hundred two".