2221131000021 has 8 divisors (see below), whose sum is σ = 2962271094144. Its totient is φ = 1480372452960.

The previous prime is 2221130999993. The next prime is 2221131000047. The reversal of 2221131000021 is 1200001311222.

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

It is not a de Polignac number, because 2221131000021 - 2⁶ = 2221130999957 is a prime.

It is a super-3 number, since 3×2221131000021³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221131000721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95373181 + ... + 95396466.

It is an arithmetic number, because the mean of its divisors is an integer number (370283886768).

Almost surely, 2^{2221131000021} is an apocalyptic number.

It is an amenable number.

2221131000021 is a deficient number, since it is larger than the sum of its proper divisors (741140094123).

2221131000021 is a wasteful number, since it uses less digits than its factorization.

2221131000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190773531.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2221131000021 its reverse (1200001311222), we get a palindrome (3421132311243).

The spelling of 2221131000021 in words is "two trillion, two hundred twenty-one billion, one hundred thirty-one million, twenty-one", and thus it is an aban number.