10222021222220 has 24 divisors (see below), whose sum is σ = 21477608460000. Its totient is φ = 4086643937792.

The previous prime is 10222021222211. The next prime is 10222021222223. The reversal of 10222021222220 is 2222212022201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 10222021222192 and 10222021222201.

It is not an unprimeable number, because it can be changed into a prime (10222021222223) 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, 135245720 + ... + 135321279.

It is an arithmetic number, because the mean of its divisors is an integer number (894900352500).

Almost surely, 2^{10222021222220} is an apocalyptic number.

10222021222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10222021222220 is an abundant number, since it is smaller than the sum of its proper divisors (11255587237780).

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

10222021222220 is a wasteful number, since it uses less digits than its factorization.

10222021222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270568897 (or 270568895 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 10222021222220 its reverse (2222212022201), we get a palindrome (12444233244421).

It can be divided in two parts, 1022202 and 1222220, that added together give a palindrome (2244422).

The spelling of 10222021222220 in words is "ten trillion, two hundred twenty-two billion, twenty-one million, two hundred twenty-two thousand, two hundred twenty".