221400002131151 has 2 divisors, whose sum is σ = 221400002131152. Its totient is φ = 221400002131150.

The previous prime is 221400002131111. The next prime is 221400002131237. The reversal of 221400002131151 is 151131200004122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221400002131151 - 2²² = 221399997936847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221400002131111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110700001065575 + 110700001065576.

It is an arithmetic number, because the mean of its divisors is an integer number (110700001065576).

Almost surely, 2^{221400002131151} is an apocalyptic number.

221400002131151 is a deficient number, since it is larger than the sum of its proper divisors (1).

221400002131151 is an equidigital number, since it uses as much as digits as its factorization.

221400002131151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 221400002131151 its reverse (151131200004122), we get a palindrome (372531202135273).

The spelling of 221400002131151 in words is "two hundred twenty-one trillion, four hundred billion, two million, one hundred thirty-one thousand, one hundred fifty-one".