100121121120212 has 6 divisors (see below), whose sum is σ = 175211961960378. Its totient is φ = 50060560560104.

The previous prime is 100121121120193. The next prime is 100121121120233. The reversal of 100121121120212 is 212021121121001.

It can be written as a sum of positive squares in only one way, i.e., 82304921706436 + 17816199413776 = 9072206^2 + 4220924^2 .

It is a super-2 number, since 2×100121121120212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12515140140023 + ... + 12515140140030.

It is an arithmetic number, because the mean of its divisors is an integer number (29201993660063).

Almost surely, 2^{100121121120212} is an apocalyptic number.

It is an amenable number.

100121121120212 is a deficient number, since it is larger than the sum of its proper divisors (75090840840166).

100121121120212 is a wasteful number, since it uses less digits than its factorization.

100121121120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25030280280057 (or 25030280280055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 100121121120212 its reverse (212021121121001), we get a palindrome (312142242241213).

The spelling of 100121121120212 in words is "one hundred trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred twenty thousand, two hundred twelve".