20212111110 has 32 divisors (see below), whose sum is σ = 48521046240. Its totient is φ = 5388565248.

The previous prime is 20212111103. The next prime is 20212111147. The reversal of 20212111110 is 1111121202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43476 + ... + 205704.

It is an arithmetic number, because the mean of its divisors is an integer number (1516282695).

Almost surely, 2^20212111110 is an apocalyptic number.

20212111110 is an abundant number, since it is smaller than the sum of its proper divisors (28308935130).

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

20212111110 is a wasteful number, since it uses less digits than its factorization.

20212111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166392.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20212111110 its reverse (1111121202), we get a palindrome (21323232312).

The spelling of 20212111110 in words is "twenty billion, two hundred twelve million, one hundred eleven thousand, one hundred ten".