12212026210525 has 6 divisors (see below), whose sum is σ = 15142912501082. Its totient is φ = 9769620968400.

The previous prime is 12212026210427. The next prime is 12212026210537. The reversal of 12212026210525 is 52501262021221.

It can be written as a sum of positive squares in 3 ways, for example, as 129630961849 + 12082395248676 = 360043^2 + 3475974^2 .

It is not a de Polignac number, because 12212026210525 - 2²³ = 12212017821917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 244240524186 + ... + 244240524235.

Almost surely, 2^{12212026210525} is an apocalyptic number.

It is an amenable number.

12212026210525 is a deficient number, since it is larger than the sum of its proper divisors (2930886290557).

12212026210525 is an equidigital number, since it uses as much as digits as its factorization.

12212026210525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488481048431 (or 488481048426 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 12212026210525 its reverse (52501262021221), we get a palindrome (64713288231746).

The spelling of 12212026210525 in words is "twelve trillion, two hundred twelve billion, twenty-six million, two hundred ten thousand, five hundred twenty-five".