10122001012 has 6 divisors (see below), whose sum is σ = 17713501778. Its totient is φ = 5061000504.

The previous prime is 10122001009. The next prime is 10122001067. The reversal of 10122001012 is 21010022101.

It can be written as a sum of positive squares in only one way, i.e., 8327292516 + 1794708496 = 91254^2 + 42364^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10122001012.

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, 1265250123 + ... + 1265250130.

Almost surely, 2^10122001012 is an apocalyptic number.

It is an amenable number.

10122001012 is a deficient number, since it is larger than the sum of its proper divisors (7591500766).

10122001012 is a wasteful number, since it uses less digits than its factorization.

10122001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530500257 (or 2530500255 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10122001012 its reverse (21010022101), we get a palindrome (31132023113).

The spelling of 10122001012 in words is "ten billion, one hundred twenty-two million, one thousand, twelve".