221400002131203 has 8 divisors (see below), whose sum is σ = 337371431819008. Its totient is φ = 126514286932104.

The previous prime is 221400002131151. The next prime is 221400002131237. The reversal of 221400002131203 is 302131200004122.

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

It is not a de Polignac number, because 221400002131203 - 2¹⁰ = 221400002130179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 10542857244343 = 221400002131203 / (2 + 2 + 1 + 4 + 0 + 0 + 0 + 0 + 2 + 1 + 3 + 1 + 2 + 0 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221400002131203.

It is not an unprimeable number, because it can be changed into a prime (221400002133203) 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, 5271428622151 + ... + 5271428622192.

It is an arithmetic number, because the mean of its divisors is an integer number (42171428977376).

Almost surely, 2^{221400002131203} is an apocalyptic number.

221400002131203 is a deficient number, since it is larger than the sum of its proper divisors (115971429687805).

221400002131203 is a wasteful number, since it uses less digits than its factorization.

221400002131203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10542857244353.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 221400002131203 its reverse (302131200004122), we get a palindrome (523531202135325).

The spelling of 221400002131203 in words is "two hundred twenty-one trillion, four hundred billion, two million, one hundred thirty-one thousand, two hundred three".