10022012221220 has 72 divisors (see below), whose sum is σ = 22365860193600. Its totient is φ = 3771508262400.

The previous prime is 10022012221219. The next prime is 10022012221223. The reversal of 10022012221220 is 2212221022001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (10022012221223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14404931 + ... + 15084629.

Almost surely, 2^{10022012221220} is an apocalyptic number.

10022012221220 is a gapful number since it is divisible by the number (10) 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 10022012221220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11182930096800).

10022012221220 is an abundant number, since it is smaller than the sum of its proper divisors (12343847972380).

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

10022012221220 is a wasteful number, since it uses less digits than its factorization.

10022012221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682293 (or 682274 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10022012221220 its reverse (2212221022001), we get a palindrome (12234233243221).

The spelling of 10022012221220 in words is "ten trillion, twenty-two billion, twelve million, two hundred twenty-one thousand, two hundred twenty".