20201122110 has 64 divisors (see below), whose sum is σ = 52729185600. Its totient is φ = 4923340800.

The previous prime is 20201122043. The next prime is 20201122121. The reversal of 20201122110 is 1122110202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217035 + ... + 295814.

It is an arithmetic number, because the mean of its divisors is an integer number (823893525).

Almost surely, 2^20201122110 is an apocalyptic number.

20201122110 is an abundant number, since it is smaller than the sum of its proper divisors (32528063490).

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

20201122110 is a wasteful number, since it uses less digits than its factorization.

20201122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512973.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20201122110 its reverse (1122110202), we get a palindrome (21323232312).

It can be divided in two parts, 20201 and 122110, that added together give a triangular number (142311 = T₅₃₃).

The spelling of 20201122110 in words is "twenty billion, two hundred one million, one hundred twenty-two thousand, one hundred ten".