3100021222100 has 108 divisors (see below), whose sum is σ = 7395338368572. Its totient is φ = 1127105548800.

The previous prime is 3100021221953. The next prime is 3100021222187. The reversal of 3100021222100 is 12221200013.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 97855101124 + 3002166120976 = 312818^2 + 1732676^2 .

It is a super-2 number, since 2×3100021222100² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 97909472 + ... + 97941128.

Almost surely, 2^{3100021222100} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3100021222100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3697669184286).

3100021222100 is an abundant number, since it is smaller than the sum of its proper divisors (4295317146472).

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

3100021222100 is a wasteful number, since it uses less digits than its factorization.

3100021222100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39786 (or 39768 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 3100021222100 its reverse (12221200013), we get a palindrome (3112242422113).

The spelling of 3100021222100 in words is "three trillion, one hundred billion, twenty-one million, two hundred twenty-two thousand, one hundred".