2321201011212 has 36 divisors (see below), whose sum is σ = 5867535806496. Its totient is φ = 773726355360.

The previous prime is 2321201011117. The next prime is 2321201011223. The reversal of 2321201011212 is 2121101021232.

2321201011212 is a `hidden beast` number, since 232 + 120 + 101 + 1 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2321201011212² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 4666762 + ... + 5140142.

It is an arithmetic number, because the mean of its divisors is an integer number (162987105736).

Almost surely, 2^{2321201011212} is an apocalyptic number.

It is an amenable number.

2321201011212 is an abundant number, since it is smaller than the sum of its proper divisors (3546334795284).

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

2321201011212 is a wasteful number, since it uses less digits than its factorization.

2321201011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609598 (or 609593 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2321201011212 its reverse (2121101021232), we get a palindrome (4442302032444).

The spelling of 2321201011212 in words is "two trillion, three hundred twenty-one billion, two hundred one million, eleven thousand, two hundred twelve".