20220111020 has 48 divisors (see below), whose sum is σ = 43737754368. Its totient is φ = 7847582400.

The previous prime is 20220111001. The next prime is 20220111053. The reversal of 20220111020 is 2011102202.

It is a happy number.

It is a super-2 number, since 2×20220111020² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20220110992 and 20220111010.

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, 52007 + ... + 207713.

It is an arithmetic number, because the mean of its divisors is an integer number (911203216).

Almost surely, 2^20220111020 is an apocalyptic number.

20220111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20220111020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21868877184).

20220111020 is an abundant number, since it is smaller than the sum of its proper divisors (23517643348).

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

20220111020 is a wasteful number, since it uses less digits than its factorization.

20220111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155910 (or 155908 counting only the distinct ones).

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

Adding to 20220111020 its reverse (2011102202), we get a palindrome (22231213222).

The spelling of 20220111020 in words is "twenty billion, two hundred twenty million, one hundred eleven thousand, twenty".