123211221002 has 8 divisors (see below), whose sum is σ = 187846615812. Its totient is φ = 60595682400.

The previous prime is 123211220999. The next prime is 123211221017. The reversal of 123211221002 is 200122112321.

It can be written as a sum of positive squares in 2 ways, for example, as 96827391241 + 26383829761 = 311171^2 + 162431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504963899 + ... + 504964142.

Almost surely, 2^123211221002 is an apocalyptic number.

123211221002 is a deficient number, since it is larger than the sum of its proper divisors (64635394810).

123211221002 is a wasteful number, since it uses less digits than its factorization.

123211221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009928104.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 123211221002 its reverse (200122112321), we get a palindrome (323333333323).

The spelling of 123211221002 in words is "one hundred twenty-three billion, two hundred eleven million, two hundred twenty-one thousand, two".