21000023022127 has 2 divisors, whose sum is σ = 21000023022128. Its totient is φ = 21000023022126.

The previous prime is 21000023022101. The next prime is 21000023022151. The reversal of 21000023022127 is 72122032000012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21000023022127 - 2²³ = 21000014633519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21000023022098 and 21000023022107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21000023029127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10500011511063 + 10500011511064.

It is an arithmetic number, because the mean of its divisors is an integer number (10500011511064).

Almost surely, 2^{21000023022127} is an apocalyptic number.

21000023022127 is a deficient number, since it is larger than the sum of its proper divisors (1).

21000023022127 is an equidigital number, since it uses as much as digits as its factorization.

21000023022127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 21000023022127 its reverse (72122032000012), we get a palindrome (93122055022139).

The spelling of 21000023022127 in words is "twenty-one trillion, twenty-three million, twenty-two thousand, one hundred twenty-seven".