20022021120 has 88 divisors (see below), whose sum is σ = 64039232304. Its totient is φ = 5339201536.

The previous prime is 20022021113. The next prime is 20022021121. The reversal of 20022021120 is 2112022002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20022021096 and 20022021105.

It is not an unprimeable number, because it can be changed into a prime (20022021121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636399 + ... + 667118.

Almost surely, 2^20022021120 is an apocalyptic number.

20022021120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022021120 is an abundant number, since it is smaller than the sum of its proper divisors (44017211184).

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

20022021120 is a wasteful number, since it uses less digits than its factorization.

20022021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303545 (or 1303527 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20022021120 its reverse (2112022002), we get a palindrome (22134043122).

The spelling of 20022021120 in words is "twenty billion, twenty-two million, twenty-one thousand, one hundred twenty".