2101222332400 has 30 divisors (see below), whose sum is σ = 5048186654552. Its totient is φ = 840488932800.

The previous prime is 2101222332389. The next prime is 2101222332401. The reversal of 2101222332400 is 42332221012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101222332401) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2626527516 + ... + 2626528315.

Almost surely, 2^{2101222332400} is an apocalyptic number.

2101222332400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101222332400 is an abundant number, since it is smaller than the sum of its proper divisors (2946964322152).

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

2101222332400 is a wasteful number, since it uses less digits than its factorization.

2101222332400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5253055849 (or 5253055838 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 2101222332400 its reverse (42332221012), we get a palindrome (2143554553412).

The spelling of 2101222332400 in words is "two trillion, one hundred one billion, two hundred twenty-two million, three hundred thirty-two thousand, four hundred".