12221012010148 has 12 divisors (see below), whose sum is σ = 21644442958320. Its totient is φ = 6036885450632.

The previous prime is 12221012010091. The next prime is 12221012010149. The reversal of 12221012010148 is 84101021012221.

It is not an unprimeable number, because it can be changed into a prime (12221012010149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18405138238 + ... + 18405138901.

It is an arithmetic number, because the mean of its divisors is an integer number (1803703579860).

Almost surely, 2^{12221012010148} is an apocalyptic number.

It is an amenable number.

12221012010148 is a deficient number, since it is larger than the sum of its proper divisors (9423430948172).

12221012010148 is a wasteful number, since it uses less digits than its factorization.

12221012010148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36810277226 (or 36810277224 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

Adding to 12221012010148 its reverse (84101021012221), we get a palindrome (96322033022369).

The spelling of 12221012010148 in words is "twelve trillion, two hundred twenty-one billion, twelve million, ten thousand, one hundred forty-eight".