2221131241400 has 48 divisors (see below), whose sum is σ = 5164238608200. Its totient is φ = 888433834880.

The previous prime is 2221131241331. The next prime is 2221131241447. The reversal of 2221131241400 is 41421311222.

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, 13247291 + ... + 13413909.

Almost surely, 2^{2221131241400} is an apocalyptic number.

2221131241400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221131241400 is an abundant number, since it is smaller than the sum of its proper divisors (2943107366800).

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

2221131241400 is a wasteful number, since it uses less digits than its factorization.

2221131241400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233288 (or 233279 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 2221131241400 its reverse (41421311222), we get a palindrome (2262552552622).

The spelling of 2221131241400 in words is "two trillion, two hundred twenty-one billion, one hundred thirty-one million, two hundred forty-one thousand, four hundred".