12221010021123 has 36 divisors (see below), whose sum is σ = 18895183915608. Its totient is φ = 7609549509120.

The previous prime is 12221010021091. The next prime is 12221010021127. The reversal of 12221010021123 is 32112001012221.

12221010021123 is a `hidden beast` number, since 122 + 210 + 100 + 211 + 23 = 666.

12221010021123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12221010021123 - 2⁵ = 12221010021091 is a prime.

It is a super-2 number, since 2×12221010021123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12221010021096 and 12221010021105.

It is not an unprimeable number, because it can be changed into a prime (12221010021127) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17592786 + ... + 18274247.

It is an arithmetic number, because the mean of its divisors is an integer number (524866219878).

Almost surely, 2^{12221010021123} is an apocalyptic number.

12221010021123 is a deficient number, since it is larger than the sum of its proper divisors (6674173894485).

12221010021123 is a wasteful number, since it uses less digits than its factorization.

12221010021123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35867204 (or 35867184 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12221010021123 its reverse (32112001012221), we get a palindrome (44333011033344).

The spelling of 12221010021123 in words is "twelve trillion, two hundred twenty-one billion, ten million, twenty-one thousand, one hundred twenty-three".