2001012202212 has 24 divisors (see below), whose sum is σ = 4677120391776. Its totient is φ = 665848078848.

The previous prime is 2001012202201. The next prime is 2001012202223. The reversal of 2001012202212 is 2122022101002.

It is an interprime number because it is at equal distance from previous prime (2001012202201) and next prime (2001012202223).

It is a super-4 number, since 4×2001012202212⁴ (a number of 50 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2001012202191 and 2001012202200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144491358 + ... + 144505205.

It is an arithmetic number, because the mean of its divisors is an integer number (194880016324).

Almost surely, 2^{2001012202212} is an apocalyptic number.

It is an amenable number.

2001012202212 is an abundant number, since it is smaller than the sum of its proper divisors (2676108189564).

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

2001012202212 is a wasteful number, since it uses less digits than its factorization.

2001012202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288997147 (or 288997145 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2001012202212 its reverse (2122022101002), we get a palindrome (4123034303214).

The spelling of 2001012202212 in words is "two trillion, one billion, twelve million, two hundred two thousand, two hundred twelve".