20011122022 has 8 divisors (see below), whose sum is σ = 30107368872. Its totient is φ = 9975332400.

The previous prime is 20011122011. The next prime is 20011122029. The reversal of 20011122022 is 22022111002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20011121993 and 20011122011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011122029) 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 3 ways as a sum of consecutive naturals, for example, 15113479 + ... + 15114802.

It is an arithmetic number, because the mean of its divisors is an integer number (3763421109).

Almost surely, 2^20011122022 is an apocalyptic number.

20011122022 is a deficient number, since it is larger than the sum of its proper divisors (10096246850).

20011122022 is a wasteful number, since it uses less digits than its factorization.

20011122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30228614.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20011122022 its reverse (22022111002), we get a palindrome (42033233024).

The spelling of 20011122022 in words is "twenty billion, eleven million, one hundred twenty-two thousand, twenty-two".