1201002021212 has 24 divisors (see below), whose sum is σ = 2402202240480. Its totient is φ = 514672680960.

The previous prime is 1201002021187. The next prime is 1201002021217. The reversal of 1201002021212 is 2121202001021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201002021217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1423037 + ... + 2104052.

It is an arithmetic number, because the mean of its divisors is an integer number (100091760020).

Almost surely, 2^{1201002021212} is an apocalyptic number.

It is an amenable number.

1201002021212 is an abundant number, since it is smaller than the sum of its proper divisors (1201200219268).

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

1201002021212 is a wasteful number, since it uses less digits than its factorization.

1201002021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3539261 (or 3539259 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1201002021212 its reverse (2121202001021), we get a palindrome (3322204022233).

The spelling of 1201002021212 in words is "one trillion, two hundred one billion, two million, twenty-one thousand, two hundred twelve".