2221112021001 has 16 divisors (see below), whose sum is σ = 3057054604800. Its totient is φ = 1432956648960.

The previous prime is 2221112020973. The next prime is 2221112021017. The reversal of 2221112021001 is 1001202111222.

It is not a de Polignac number, because 2221112021001 - 2¹⁵ = 2221111988233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221112021021) 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, 11903775 + ... + 12088923.

It is an arithmetic number, because the mean of its divisors is an integer number (191065912800).

Almost surely, 2^{2221112021001} is an apocalyptic number.

It is an amenable number.

2221112021001 is a deficient number, since it is larger than the sum of its proper divisors (835942583799).

2221112021001 is a wasteful number, since it uses less digits than its factorization.

2221112021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314176.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2221112021001 its reverse (1001202111222), we get a palindrome (3222314132223).

The spelling of 2221112021001 in words is "two trillion, two hundred twenty-one billion, one hundred twelve million, twenty-one thousand, one".