11213400220440 has 128 divisors (see below), whose sum is σ = 36699597158400. Its totient is φ = 2718311429120.

The previous prime is 11213400220433. The next prime is 11213400220469. The reversal of 11213400220440 is 4402200431211.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 11213400220440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46249369 + ... + 46491191.

It is an arithmetic number, because the mean of its divisors is an integer number (286715602800).

Almost surely, 2^{11213400220440} is an apocalyptic number.

11213400220440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11213400220440 is an abundant number, since it is smaller than the sum of its proper divisors (25486196937960).

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

11213400220440 is a wasteful number, since it uses less digits than its factorization.

11213400220440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276977 (or 276973 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 11213400220440 its reverse (4402200431211), we get a palindrome (15615600651651).

The spelling of 11213400220440 in words is "eleven trillion, two hundred thirteen billion, four hundred million, two hundred twenty thousand, four hundred forty".