12101021001212 has 192 divisors, whose sum is σ = 25682846515200. Its totient is φ = 4916212704000.

The previous prime is 12101021001203. The next prime is 12101021001257. The reversal of 12101021001212 is 21210012010121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1149080387 + ... + 1149090917.

It is an arithmetic number, because the mean of its divisors is an integer number (133764825600).

Almost surely, 2^{12101021001212} is an apocalyptic number.

It is an amenable number.

12101021001212 is an abundant number, since it is smaller than the sum of its proper divisors (13581825513988).

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

12101021001212 is a wasteful number, since it uses less digits than its factorization.

12101021001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11128 (or 11126 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12101021001212 its reverse (21210012010121), we get a palindrome (33311033011333).

The spelling of 12101021001212 in words is "twelve trillion, one hundred one billion, twenty-one million, one thousand, two hundred twelve".