22212001002220 has 24 divisors (see below), whose sum is σ = 46664776355904. Its totient is φ = 8881071972096.

The previous prime is 22212001002203. The next prime is 22212001002227. The reversal of 22212001002220 is 2220010021222.

It is a junction number, because it is equal to n+sod(n) for n = 22212001002194 and 22212001002203.

It is not an unprimeable number, because it can be changed into a prime (22212001002227) 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, 232977949 + ... + 233073268.

It is an arithmetic number, because the mean of its divisors is an integer number (1944365681496).

Almost surely, 2^{22212001002220} is an apocalyptic number.

22212001002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212001002220 is an abundant number, since it is smaller than the sum of its proper divisors (24452775353684).

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

22212001002220 is a wasteful number, since it uses less digits than its factorization.

22212001002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466053609 (or 466053607 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22212001002220 its reverse (2220010021222), we get a palindrome (24432011023442).

The spelling of 22212001002220 in words is "twenty-two trillion, two hundred twelve billion, one million, two thousand, two hundred twenty".