12221060612054 has 24 divisors (see below), whose sum is σ = 21397283647488. Its totient is φ = 5219721633840.

The previous prime is 12221060612051. The next prime is 12221060612063. The reversal of 12221060612054 is 45021606012221.

It is a self number, because there is not a number n which added to its sum of digits gives 12221060612054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221060612051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212777942 + ... + 212835369.

It is an arithmetic number, because the mean of its divisors is an integer number (891553485312).

Almost surely, 2^{12221060612054} is an apocalyptic number.

12221060612054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12221060612054 is a deficient number, since it is larger than the sum of its proper divisors (9176223035434).

12221060612054 is a wasteful number, since it uses less digits than its factorization.

12221060612054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425613620 (or 425613613 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 12221060612054 its reverse (45021606012221), we get a palindrome (57242666624275).

The spelling of 12221060612054 in words is "twelve trillion, two hundred twenty-one billion, sixty million, six hundred twelve thousand, fifty-four".