101334422821 has 2 divisors, whose sum is σ = 101334422822. Its totient is φ = 101334422820.

The previous prime is 101334422759. The next prime is 101334422837. The reversal of 101334422821 is 128224433101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98024721921 + 3309700900 = 313089^2 + 57530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101334422821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101334422921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50667211410 + 50667211411.

It is an arithmetic number, because the mean of its divisors is an integer number (50667211411).

Almost surely, 2^101334422821 is an apocalyptic number.

It is an amenable number.

101334422821 is a deficient number, since it is larger than the sum of its proper divisors (1).

101334422821 is an equidigital number, since it uses as much as digits as its factorization.

101334422821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 101334422821 its reverse (128224433101), we get a palindrome (229558855922).

The spelling of 101334422821 in words is "one hundred one billion, three hundred thirty-four million, four hundred twenty-two thousand, eight hundred twenty-one".