101212001200 has 60 divisors (see below), whose sum is σ = 247749843888. Its totient is φ = 39720928000.

The previous prime is 101212001141. The next prime is 101212001201. The reversal of 101212001200 is 2100212101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (101212001201) 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 11 ways as a sum of consecutive naturals, for example, 2365876 + ... + 2408275.

Almost surely, 2^101212001200 is an apocalyptic number.

101212001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101212001200 is an abundant number, since it is smaller than the sum of its proper divisors (146537842688).

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

101212001200 is a wasteful number, since it uses less digits than its factorization.

101212001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774222 (or 4774211 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 101212001200 its reverse (2100212101), we get a palindrome (103312213301).

The spelling of 101212001200 in words is "one hundred one billion, two hundred twelve million, one thousand, two hundred".