20111011212110 has 32 divisors (see below), whose sum is σ = 44553624841152. Its totient is φ = 6364803548160.

The previous prime is 20111011212101. The next prime is 20111011212121. The reversal of 20111011212110 is 1121211011102.

It is a super-2 number, since 2×20111011212110² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 11050005251 + ... + 11050007070.

It is an arithmetic number, because the mean of its divisors is an integer number (1392300776286).

Almost surely, 2^{20111011212110} is an apocalyptic number.

20111011212110 is an abundant number, since it is smaller than the sum of its proper divisors (24442613629042).

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

20111011212110 is a wasteful number, since it uses less digits than its factorization.

20111011212110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22100012348.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 20111011212110 its reverse (1121211011102), we get a palindrome (21232222223212).

The spelling of 20111011212110 in words is "twenty trillion, one hundred eleven billion, eleven million, two hundred twelve thousand, one hundred ten".