100121011010212 has 12 divisors (see below), whose sum is σ = 175252773690316. Its totient is φ = 50048789955840.

The previous prime is 100121011010203. The next prime is 100121011010219. The reversal of 100121011010212 is 212010110121001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20349247308196 + 79771763702016 = 4511014^2 + 8931504^2 .

It is a super-3 number, since 3×100121011010212³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100121011010192 and 100121011010201.

It is not an unprimeable number, because it can be changed into a prime (100121011010219) 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, 2928868089 + ... + 2928902272.

Almost surely, 2^{100121011010212} is an apocalyptic number.

It is an amenable number.

100121011010212 is a deficient number, since it is larger than the sum of its proper divisors (75131762680104).

100121011010212 is a wasteful number, since it uses less digits than its factorization.

100121011010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5857774638 (or 5857774636 counting only the distinct ones).

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

Adding to 100121011010212 its reverse (212010110121001), we get a palindrome (312131121131213).

The spelling of 100121011010212 in words is "one hundred trillion, one hundred twenty-one billion, eleven million, ten thousand, two hundred twelve".