20120221110110 has 32 divisors (see below), whose sum is σ = 39552357877632. Its totient is φ = 7308377362080.

The previous prime is 20120221110083. The next prime is 20120221110137. The reversal of 20120221110110 is 1101112202102.

It is an interprime number because it is at equal distance from previous prime (20120221110083) and next prime (20120221110137).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100733252 + ... + 100932791.

It is an arithmetic number, because the mean of its divisors is an integer number (1236011183676).

Almost surely, 2^{20120221110110} is an apocalyptic number.

20120221110110 is a deficient number, since it is larger than the sum of its proper divisors (19432136767522).

20120221110110 is a wasteful number, since it uses less digits than its factorization.

20120221110110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201666968.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20120221110110 its reverse (1101112202102), we get a palindrome (21221333312212).

It can be divided in two parts, 201202 and 21110110, that added together give a palindrome (21311312).

The spelling of 20120221110110 in words is "twenty trillion, one hundred twenty billion, two hundred twenty-one million, one hundred ten thousand, one hundred ten".