20211021122 has 32 divisors (see below), whose sum is σ = 31444913664. Its totient is φ = 9737280000.

The previous prime is 20211021101. The next prime is 20211021139. The reversal of 20211021122 is 22112011202.

It is a junction number, because it is equal to n+sod(n) for n = 20211021097 and 20211021106.

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, 1597622 + ... + 1610222.

It is an arithmetic number, because the mean of its divisors is an integer number (982653552).

Almost surely, 2^20211021122 is an apocalyptic number.

20211021122 is a deficient number, since it is larger than the sum of its proper divisors (11233892542).

20211021122 is a wasteful number, since it uses less digits than its factorization.

20211021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12914.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20211021122 its reverse (22112011202), we get a palindrome (42323032324).

The spelling of 20211021122 in words is "twenty billion, two hundred eleven million, twenty-one thousand, one hundred twenty-two".