1422123512 has 32 divisors (see below), whose sum is σ = 2790238080. Its totient is φ = 678689280.

The previous prime is 1422123503. The next prime is 1422123517. The reversal of 1422123512 is 2153212241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422123517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21173 + ... + 57380.

It is an arithmetic number, because the mean of its divisors is an integer number (87194940).

Almost surely, 2^1422123512 is an apocalyptic number.

It is an amenable number.

1422123512 is a deficient number, since it is larger than the sum of its proper divisors (1368114568).

1422123512 is a wasteful number, since it uses less digits than its factorization.

1422123512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78663 (or 78659 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 1422123512 is about 37711.0529155578. The cubic root of 1422123512 is about 1124.5508691465.

Adding to 1422123512 its reverse (2153212241), we get a palindrome (3575335753).

The spelling of 1422123512 in words is "one billion, four hundred twenty-two million, one hundred twenty-three thousand, five hundred twelve".