100002011221992 has 64 divisors (see below), whose sum is σ = 273222404164800. Its totient is φ = 30249234621440.

The previous prime is 100002011221969. The next prime is 100002011221997. The reversal of 100002011221992 is 299122110200001.

It is a super-2 number, since 2×100002011221992² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100002011221997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339884817 + ... + 340178912.

It is an arithmetic number, because the mean of its divisors is an integer number (4269100065075).

Almost surely, 2^{100002011221992} is an apocalyptic number.

100002011221992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100002011221992 is an abundant number, since it is smaller than the sum of its proper divisors (173220392942808).

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

100002011221992 is a wasteful number, since it uses less digits than its factorization.

100002011221992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680064306 (or 680064302 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 30.

Adding to 100002011221992 its reverse (299122110200001), we get a palindrome (399124121421993).

The spelling of 100002011221992 in words is "one hundred trillion, two billion, eleven million, two hundred twenty-one thousand, nine hundred ninety-two".