2102212030400 has 84 divisors (see below), whose sum is σ = 5477035282128. Its totient is φ = 791420989440.

The previous prime is 2102212030397. The next prime is 2102212030441. The reversal of 2102212030400 is 40302122012.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

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, 38616404 + ... + 38670803.

Almost surely, 2^{2102212030400} is an apocalyptic number.

2102212030400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102212030400 is an abundant number, since it is smaller than the sum of its proper divisors (3374823251728).

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

2102212030400 is a wasteful number, since it uses less digits than its factorization.

2102212030400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77287246 (or 77287231 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 2102212030400 its reverse (40302122012), we get a palindrome (2142514152412).

The spelling of 2102212030400 in words is "two trillion, one hundred two billion, two hundred twelve million, thirty thousand, four hundred".