20120211111102 has 32 divisors (see below), whose sum is σ = 40488752256000. Its totient is φ = 6665425560288.

The previous prime is 20120211111083. The next prime is 20120211111151. The reversal of 20120211111102 is 20111111202102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8560102 + ... + 10654377.

It is an arithmetic number, because the mean of its divisors is an integer number (1265273508000).

Almost surely, 2^{20120211111102} is an apocalyptic number.

20120211111102 is an abundant number, since it is smaller than the sum of its proper divisors (20368541144898).

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

20120211111102 is a wasteful number, since it uses less digits than its factorization.

20120211111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19215560.

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

Adding to 20120211111102 its reverse (20111111202102), we get a palindrome (40231322313204).

The spelling of 20120211111102 in words is "twenty trillion, one hundred twenty billion, two hundred eleven million, one hundred eleven thousand, one hundred two".