1000120201212 has 48 divisors (see below), whose sum is σ = 2546034753024. Its totient is φ = 303034080000.

The previous prime is 1000120201211. The next prime is 1000120201219. The reversal of 1000120201212 is 2121020210001.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000120201211) 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, 836212 + ... + 1643012.

It is an arithmetic number, because the mean of its divisors is an integer number (53042390688).

Almost surely, 2^{1000120201212} is an apocalyptic number.

1000120201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000120201212 is an abundant number, since it is smaller than the sum of its proper divisors (1545914551812).

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

1000120201212 is a wasteful number, since it uses less digits than its factorization.

1000120201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816210 (or 816208 counting only the distinct ones).

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

Adding to 1000120201212 its reverse (2121020210001), we get a palindrome (3121140411213).

The spelling of 1000120201212 in words is "one trillion, one hundred twenty million, two hundred one thousand, two hundred twelve".