20220021112 has 8 divisors (see below), whose sum is σ = 37912539600. Its totient is φ = 10110010552.

The previous prime is 20220021091. The next prime is 20220021113. The reversal of 20220021112 is 21112002202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20220021092 and 20220021101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220021113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1263751312 + ... + 1263751327.

It is an arithmetic number, because the mean of its divisors is an integer number (4739067450).

Almost surely, 2^20220021112 is an apocalyptic number.

It is an amenable number.

20220021112 is a deficient number, since it is larger than the sum of its proper divisors (17692518488).

20220021112 is a wasteful number, since it uses less digits than its factorization.

20220021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527502645 (or 2527502641 counting only the distinct ones).

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

Adding to 20220021112 its reverse (21112002202), we get a palindrome (41332023314).

The spelling of 20220021112 in words is "twenty billion, two hundred twenty million, twenty-one thousand, one hundred twelve".