10121121001212 has 36 divisors (see below), whose sum is σ = 25572299812920. Its totient is φ = 3114191076672.

The previous prime is 10121121001157. The next prime is 10121121001291. The reversal of 10121121001212 is 21210012112101.

It is a happy number.

10121121001212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 10121121001191 and 10121121001200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2495343387 + ... + 2495347442.

It is an arithmetic number, because the mean of its divisors is an integer number (710341661470).

Almost surely, 2^{10121121001212} is an apocalyptic number.

10121121001212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10121121001212 is an abundant number, since it is smaller than the sum of its proper divisors (15451178811708).

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

10121121001212 is a wasteful number, since it uses less digits than its factorization.

10121121001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4990690862 (or 4990690847 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10121121001212 its reverse (21210012112101), we get a palindrome (31331133113313).

The spelling of 10121121001212 in words is "ten trillion, one hundred twenty-one billion, one hundred twenty-one million, one thousand, two hundred twelve".