1212201001212 has 96 divisors (see below), whose sum is σ = 2894268319488. Its totient is φ = 394735171584.

The previous prime is 1212201001189. The next prime is 1212201001247. The reversal of 1212201001212 is 2121001022121.

It is a junction number, because it is equal to n+sod(n) for n = 1212201001191 and 1212201001200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 409111243 + ... + 409114205.

It is an arithmetic number, because the mean of its divisors is an integer number (30148628328).

Almost surely, 2^{1212201001212} is an apocalyptic number.

1212201001212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212201001212 is an abundant number, since it is smaller than the sum of its proper divisors (1682067318276).

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

1212201001212 is a wasteful number, since it uses less digits than its factorization.

1212201001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5579 (or 5577 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1212201001212 its reverse (2121001022121), we get a palindrome (3333202023333).

The spelling of 1212201001212 in words is "one trillion, two hundred twelve billion, two hundred one million, one thousand, two hundred twelve".