100012001221012 has 48 divisors (see below), whose sum is σ = 188159156317440. Its totient is φ = 46364500196352.

The previous prime is 100012001221009. The next prime is 100012001221049. The reversal of 100012001221012 is 210122100210001.

It is a junction number, because it is equal to n+sod(n) for n = 100012001220983 and 100012001221001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103166268 + ... + 104131180.

It is an arithmetic number, because the mean of its divisors is an integer number (3919982423280).

Almost surely, 2^{100012001221012} is an apocalyptic number.

It is an amenable number.

100012001221012 is a deficient number, since it is larger than the sum of its proper divisors (88147155096428).

100012001221012 is a wasteful number, since it uses less digits than its factorization.

100012001221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994000 (or 993998 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100012001221012 its reverse (210122100210001), we get a palindrome (310134101431013).

The spelling of 100012001221012 in words is "one hundred trillion, twelve billion, one million, two hundred twenty-one thousand, twelve".