11221236370840 has 32 divisors (see below), whose sum is σ = 25248140452080. Its totient is φ = 4488430794112.

The previous prime is 11221236370819. The next prime is 11221236370843. The reversal of 11221236370840 is 4807363212211.

11221236370840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11221236370840² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 11221236370793 and 11221236370802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221236370843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 911247 + ... + 4824193.

Almost surely, 2^{11221236370840} is an apocalyptic number.

11221236370840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221236370840 is an abundant number, since it is smaller than the sum of its proper divisors (14026904081240).

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

11221236370840 is a wasteful number, since it uses less digits than its factorization.

11221236370840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3984651 (or 3984647 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 11221236370840 in words is "eleven trillion, two hundred twenty-one billion, two hundred thirty-six million, three hundred seventy thousand, eight hundred forty".