10011211121212 has 48 divisors (see below), whose sum is σ = 21693240011520. Its totient is φ = 3944225440512.

The previous prime is 10011211121207. The next prime is 10011211121243. The reversal of 10011211121212 is 21212111211001.

10011211121212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10011211121212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244537162 + ... + 244578097.

It is an arithmetic number, because the mean of its divisors is an integer number (451942500240).

Almost surely, 2^{10011211121212} is an apocalyptic number.

It is an amenable number.

10011211121212 is an abundant number, since it is smaller than the sum of its proper divisors (11682028890308).

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

10011211121212 is a wasteful number, since it uses less digits than its factorization.

10011211121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489115330 (or 489115328 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 10011211121212 its reverse (21212111211001), we get a palindrome (31223322332213).

The spelling of 10011211121212 in words is "ten trillion, eleven billion, two hundred eleven million, one hundred twenty-one thousand, two hundred twelve".