100121020011992 has 32 divisors (see below), whose sum is σ = 214859164550400. Its totient is φ = 42846184243104.

The previous prime is 100121020011949. The next prime is 100121020012001. The reversal of 100121020011992 is 299110020121001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1308801692 + ... + 1308878187.

It is an arithmetic number, because the mean of its divisors is an integer number (6714348892200).

Almost surely, 2^{100121020011992} is an apocalyptic number.

It is an amenable number.

100121020011992 is an abundant number, since it is smaller than the sum of its proper divisors (114738144538408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100121020011992 is a wasteful number, since it uses less digits than its factorization.

100121020011992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617680575 (or 2617680571 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 29.

Adding to 100121020011992 its reverse (299110020121001), we get a palindrome (399231040132993).

The spelling of 100121020011992 in words is "one hundred trillion, one hundred twenty-one billion, twenty million, eleven thousand, nine hundred ninety-two".