20021122010 has 32 divisors (see below), whose sum is σ = 36417503232. Its totient is φ = 7924452480.

The previous prime is 20021122001. The next prime is 20021122013. The reversal of 20021122010 is 1022112002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20021121982 and 20021122000.

It is not an unprimeable number, because it can be changed into a prime (20021122013) by changing a digit.

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, 465830 + ... + 506990.

It is an arithmetic number, because the mean of its divisors is an integer number (1138046976).

Almost surely, 2^20021122010 is an apocalyptic number.

20021122010 is a deficient number, since it is larger than the sum of its proper divisors (16396381222).

20021122010 is a wasteful number, since it uses less digits than its factorization.

20021122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41678.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20021122010 its reverse (1022112002), we get a palindrome (21043234012).

The spelling of 20021122010 in words is "twenty billion, twenty-one million, one hundred twenty-two thousand, ten".