101212102221200 has 60 divisors (see below), whose sum is σ = 244505512643028. Its totient is φ = 40261167705600.

The previous prime is 101212102221199. The next prime is 101212102221221. The reversal of 101212102221200 is 2122201212101.

It can be written as a sum of positive squares in 6 ways, for example, as 34390436720896 + 66821665500304 = 5864336^2 + 8174452^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 698906207 + ... + 699051006.

Almost surely, 2^{101212102221200} is an apocalyptic number.

101212102221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101212102221200 is an abundant number, since it is smaller than the sum of its proper divisors (143293410421828).

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

101212102221200 is a wasteful number, since it uses less digits than its factorization.

101212102221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397957412 (or 1397957401 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101212102221200 its reverse (2122201212101), we get a palindrome (103334303433301).

The spelling of 101212102221200 in words is "one hundred one trillion, two hundred twelve billion, one hundred two million, two hundred twenty-one thousand, two hundred".