20212500254579 has 2 divisors, whose sum is σ = 20212500254580. Its totient is φ = 20212500254578.

The previous prime is 20212500254501. The next prime is 20212500254623. The reversal of 20212500254579 is 97545200521202.

It is an a-pointer prime, because the next prime (20212500254623) can be obtained adding 20212500254579 to its sum of digits (44).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20212500254579 - 2²⁸ = 20212231819123 is a prime.

It is a super-2 number, since 2×20212500254579² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20212500214579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106250127289 + 10106250127290.

It is an arithmetic number, because the mean of its divisors is an integer number (10106250127290).

Almost surely, 2^{20212500254579} is an apocalyptic number.

20212500254579 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212500254579 is an equidigital number, since it uses as much as digits as its factorization.

20212500254579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 20212500254579 in words is "twenty trillion, two hundred twelve billion, five hundred million, two hundred fifty-four thousand, five hundred seventy-nine".