2220021122000 has 120 divisors (see below), whose sum is σ = 5900376450696. Its totient is φ = 807280320000.

The previous prime is 2220021121973. The next prime is 2220021122009. The reversal of 2220021122000 is 2211200222.

It can be written as a sum of positive squares in 4 ways, for example, as 445999580224 + 1774021541776 = 667832^2 + 1331924^2 .

It is a super-2 number, since 2×2220021122000² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220021122009) 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, 4344821 + ... + 4828820.

Almost surely, 2^{2220021122000} is an apocalyptic number.

2220021122000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220021122000 is an abundant number, since it is smaller than the sum of its proper divisors (3680355328696).

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

2220021122000 is a wasteful number, since it uses less digits than its factorization.

2220021122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9173686 (or 9173659 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2220021122000 its reverse (2211200222), we get a palindrome (2222232322222).

The spelling of 2220021122000 in words is "two trillion, two hundred twenty billion, twenty-one million, one hundred twenty-two thousand".