123212122007 has 16 divisors (see below), whose sum is σ = 136023094368. Its totient is φ = 110903644800.

The previous prime is 123212121979. The next prime is 123212122031. The reversal of 123212122007 is 700221212321.

It is not a de Polignac number, because 123212122007 - 2¹² = 123212117911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123212122057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436244 + ... + 660857.

It is an arithmetic number, because the mean of its divisors is an integer number (8501443398).

Almost surely, 2^123212122007 is an apocalyptic number.

123212122007 is a deficient number, since it is larger than the sum of its proper divisors (12810972361).

123212122007 is a wasteful number, since it uses less digits than its factorization.

123212122007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097330.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 123212122007 its reverse (700221212321), we get a palindrome (823433334328).

The spelling of 123212122007 in words is "one hundred twenty-three billion, two hundred twelve million, one hundred twenty-two thousand, seven".