1001220120212 has 48 divisors (see below), whose sum is σ = 1934408044800. Its totient is φ = 450487760640.

The previous prime is 1001220120157. The next prime is 1001220120217. The reversal of 1001220120212 is 2120210221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001220120217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2634089 + ... + 2990127.

It is an arithmetic number, because the mean of its divisors is an integer number (40300167600).

Almost surely, 2^{1001220120212} is an apocalyptic number.

It is an amenable number.

1001220120212 is a deficient number, since it is larger than the sum of its proper divisors (933187924588).

1001220120212 is a wasteful number, since it uses less digits than its factorization.

1001220120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357416 (or 357414 counting only the distinct ones).

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

Adding to 1001220120212 its reverse (2120210221001), we get a palindrome (3121430341213).

The spelling of 1001220120212 in words is "one trillion, one billion, two hundred twenty million, one hundred twenty thousand, two hundred twelve".