2221121000010 has 32 divisors (see below), whose sum is σ = 5815298619072. Its totient is φ = 538453575680.

The previous prime is 2221120999963. The next prime is 2221121000123. The reversal of 2221121000010 is 100001211222.

It is a self number, because there is not a number n which added to its sum of digits gives 2221121000010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3365334519 + ... + 3365335178.

It is an arithmetic number, because the mean of its divisors is an integer number (181728081846).

Almost surely, 2^{2221121000010} is an apocalyptic number.

2221121000010 is an abundant number, since it is smaller than the sum of its proper divisors (3594177619062).

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

2221121000010 is a wasteful number, since it uses less digits than its factorization.

2221121000010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6730669718.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2221121000010 its reverse (100001211222), we get a palindrome (2321122211232).

The spelling of 2221121000010 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-one million, ten", and thus it is an aban number.