123022221111 has 12 divisors (see below), whose sum is σ = 177880658592. Its totient is φ = 81930862656.

The previous prime is 123022221109. The next prime is 123022221151. The reversal of 123022221111 is 111122220321.

123022221111 is a `hidden beast` number, since 1 + 230 + 222 + 211 + 1 + 1 = 666.

It is not a de Polignac number, because 123022221111 - 2¹ = 123022221109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123022221151) 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, 6986671 + ... + 7004256.

It is an arithmetic number, because the mean of its divisors is an integer number (14823388216).

Almost surely, 2^123022221111 is an apocalyptic number.

123022221111 is a deficient number, since it is larger than the sum of its proper divisors (54858437481).

123022221111 is a wasteful number, since it uses less digits than its factorization.

123022221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13991910 (or 13991907 counting only the distinct ones).

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

Adding to 123022221111 its reverse (111122220321), we get a palindrome (234144441432).

The spelling of 123022221111 in words is "one hundred twenty-three billion, twenty-two million, two hundred twenty-one thousand, one hundred eleven".