20121010211110 has 32 divisors (see below), whose sum is σ = 36282000559392. Its totient is φ = 8034143258880.

The previous prime is 20121010211101. The next prime is 20121010211111. The reversal of 20121010211110 is 1111201012102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121010211111) 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 15 ways as a sum of consecutive naturals, for example, 91820634 + ... + 92039506.

It is an arithmetic number, because the mean of its divisors is an integer number (1133812517481).

Almost surely, 2^{20121010211110} is an apocalyptic number.

20121010211110 is a deficient number, since it is larger than the sum of its proper divisors (16160990348282).

20121010211110 is a wasteful number, since it uses less digits than its factorization.

20121010211110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235128.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20121010211110 its reverse (1111201012102), we get a palindrome (21232211223212).

The spelling of 20121010211110 in words is "twenty trillion, one hundred twenty-one billion, ten million, two hundred eleven thousand, one hundred ten".