100121011020112 has 20 divisors (see below), whose sum is σ = 194220162958240. Its totient is φ = 49999678643808.

The previous prime is 100121011020053. The next prime is 100121011020119. The reversal of 100121011020112 is 211020110121001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100121011020092 and 100121011020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121011020119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3801665562 + ... + 3801691897.

It is an arithmetic number, because the mean of its divisors is an integer number (9711008147912).

Almost surely, 2^{100121011020112} is an apocalyptic number.

It is an amenable number.

100121011020112 is a deficient number, since it is larger than the sum of its proper divisors (94099151938128).

100121011020112 is an equidigital number, since it uses as much as digits as its factorization.

100121011020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7603358290 (or 7603358284 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100121011020112 its reverse (211020110121001), we get a palindrome (311141121141113).

The spelling of 100121011020112 in words is "one hundred trillion, one hundred twenty-one billion, eleven million, twenty thousand, one hundred twelve".