123012221220222 has 16 divisors (see below), whose sum is σ = 252025038598032. Its totient is φ = 40003974380480.

The previous prime is 123012221220209. The next prime is 123012221220247. The reversal of 123012221220222 is 222022122210321.

It is a junction number, because it is equal to n+sod(n) for n = 123012221220192 and 123012221220201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250024839633 + ... + 250024840124.

It is an arithmetic number, because the mean of its divisors is an integer number (15751564912377).

Almost surely, 2^{123012221220222} is an apocalyptic number.

123012221220222 is an abundant number, since it is smaller than the sum of its proper divisors (129012817377810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123012221220222 is a wasteful number, since it uses less digits than its factorization.

123012221220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500049679803.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 123012221220222 its reverse (222022122210321), we get a palindrome (345034343430543).

Subtracting 123012221220222 from its reverse (222022122210321), we obtain a palindrome (99009900990099).

The spelling of 123012221220222 in words is "one hundred twenty-three trillion, twelve billion, two hundred twenty-one million, two hundred twenty thousand, two hundred twenty-two".