2220212221122 has 32 divisors (see below), whose sum is σ = 5211926762112. Its totient is φ = 617201852544.

The previous prime is 2220212221091. The next prime is 2220212221127. The reversal of 2220212221122 is 2211222120222.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2220212221127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714352443 + ... + 714355550.

It is an arithmetic number, because the mean of its divisors is an integer number (162872711316).

Almost surely, 2^{2220212221122} is an apocalyptic number.

2220212221122 is an abundant number, since it is smaller than the sum of its proper divisors (2991714540990).

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

2220212221122 is a wasteful number, since it uses less digits than its factorization.

2220212221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428708042.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 2220212221122 its reverse (2211222120222), we get a palindrome (4431434341344).

The spelling of 2220212221122 in words is "two trillion, two hundred twenty billion, two hundred twelve million, two hundred twenty-one thousand, one hundred twenty-two".