1001220102012 has 48 divisors (see below), whose sum is σ = 2516143640192. Its totient is φ = 308036226240.

The previous prime is 1001220101957. The next prime is 1001220102031. The reversal of 1001220102012 is 2102010221001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1226103 + ... + 1872369.

Almost surely, 2^{1001220102012} is an apocalyptic number.

1001220102012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1001220102012 is an abundant number, since it is smaller than the sum of its proper divisors (1514923538180).

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

1001220102012 is a wasteful number, since it uses less digits than its factorization.

1001220102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656218 (or 656216 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1001220102012 its reverse (2102010221001), we get a palindrome (3103230323013).

The spelling of 1001220102012 in words is "one trillion, one billion, two hundred twenty million, one hundred two thousand, twelve".