2221220321002 has 8 divisors (see below), whose sum is σ = 3331898052516. Its totient is φ = 1110587636832.

The previous prime is 2221220320997. The next prime is 2221220321123. The reversal of 2221220321002 is 2001230221222.

It can be written as a sum of positive squares in 2 ways, for example, as 2214438633801 + 6781687201 = 1488099^2 + 82351^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11138293 + ... + 11335960.

Almost surely, 2^{2221220321002} is an apocalyptic number.

2221220321002 is a deficient number, since it is larger than the sum of its proper divisors (1110677731514).

2221220321002 is a wasteful number, since it uses less digits than its factorization.

2221220321002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22523672.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 2221220321002 its reverse (2001230221222), we get a palindrome (4222450542224).

The spelling of 2221220321002 in words is "two trillion, two hundred twenty-one billion, two hundred twenty million, three hundred twenty-one thousand, two".