20221120212 has 12 divisors (see below), whose sum is σ = 47182613856. Its totient is φ = 6740373400.

The previous prime is 20221120207. The next prime is 20221120217. The reversal of 20221120212 is 21202112202.

It is an interprime number because it is at equal distance from previous prime (20221120207) and next prime (20221120217).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 20221120191 and 20221120200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221120217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842546664 + ... + 842546687.

It is an arithmetic number, because the mean of its divisors is an integer number (3931884488).

Almost surely, 2^20221120212 is an apocalyptic number.

It is an amenable number.

20221120212 is an abundant number, since it is smaller than the sum of its proper divisors (26961493644).

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

20221120212 is a wasteful number, since it uses less digits than its factorization.

20221120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685093358 (or 1685093356 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20221120212 its reverse (21202112202), we get a palindrome (41423232414).

The spelling of 20221120212 in words is "twenty billion, two hundred twenty-one million, one hundred twenty thousand, two hundred twelve".