101021213200 has 30 divisors (see below), whose sum is σ = 242703465674. Its totient is φ = 40408485120.

The previous prime is 101021213197. The next prime is 101021213213. The reversal of 101021213200 is 2312120101.

It can be written as a sum of positive squares in 3 ways, for example, as 740057616 + 100281155584 = 27204^2 + 316672^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126276117 + ... + 126276916.

Almost surely, 2^101021213200 is an apocalyptic number.

101021213200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101021213200 is an abundant number, since it is smaller than the sum of its proper divisors (141682252474).

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

101021213200 is a wasteful number, since it uses less digits than its factorization.

101021213200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252553051 (or 252553040 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 101021213200 its reverse (2312120101), we get a palindrome (103333333301).

The spelling of 101021213200 in words is "one hundred one billion, twenty-one million, two hundred thirteen thousand, two hundred".