221002100121151 has 2 divisors, whose sum is σ = 221002100121152. Its totient is φ = 221002100121150.

The previous prime is 221002100121119. The next prime is 221002100121203. The reversal of 221002100121151 is 151121001200122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221002100121151 - 2⁵ = 221002100121119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221002100521151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110501050060575 + 110501050060576.

It is an arithmetic number, because the mean of its divisors is an integer number (110501050060576).

Almost surely, 2^{221002100121151} is an apocalyptic number.

221002100121151 is a deficient number, since it is larger than the sum of its proper divisors (1).

221002100121151 is an equidigital number, since it uses as much as digits as its factorization.

221002100121151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 19.

Adding to 221002100121151 its reverse (151121001200122), we get a palindrome (372123101321273).

The spelling of 221002100121151 in words is "two hundred twenty-one trillion, two billion, one hundred million, one hundred twenty-one thousand, one hundred fifty-one".