123142001222 has 4 divisors (see below), whose sum is σ = 184713001836. Its totient is φ = 61571000610.

The previous prime is 123142001137. The next prime is 123142001233. The reversal of 123142001222 is 222100241321.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 123142001194 and 123142001203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30785500304 + ... + 30785500307.

It is an arithmetic number, because the mean of its divisors is an integer number (46178250459).

Almost surely, 2^123142001222 is an apocalyptic number.

123142001222 is a deficient number, since it is larger than the sum of its proper divisors (61571000614).

123142001222 is an equidigital number, since it uses as much as digits as its factorization.

123142001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61571000613.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 123142001222 its reverse (222100241321), we get a palindrome (345242242543).

The spelling of 123142001222 in words is "one hundred twenty-three billion, one hundred forty-two million, one thousand, two hundred twenty-two".