221121000021003 has 8 divisors (see below), whose sum is σ = 295230221040528. Its totient is φ = 147212889507744.

The previous prime is 221121000021001. The next prime is 221121000021011. The reversal of 221121000021003 is 300120000121122.

221121000021003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 221121000021003 - 2¹ = 221121000021001 is a prime.

It is a super-2 number, since 2×221121000021003² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221121000021001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50277624000 + ... + 50277628397.

It is an arithmetic number, because the mean of its divisors is an integer number (36903777630066).

Almost surely, 2^{221121000021003} is an apocalyptic number.

221121000021003 is a deficient number, since it is larger than the sum of its proper divisors (74109221019525).

221121000021003 is a wasteful number, since it uses less digits than its factorization.

221121000021003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100555253133.

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

Adding to 221121000021003 its reverse (300120000121122), we get a palindrome (521241000142125).

The spelling of 221121000021003 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, twenty-one thousand, three".