11221501240 has 16 divisors (see below), whose sum is σ = 25248377880. Its totient is φ = 4488600480.

The previous prime is 11221501217. The next prime is 11221501243. The reversal of 11221501240 is 4210512211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221501243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140268726 + ... + 140268805.

Almost surely, 2^11221501240 is an apocalyptic number.

11221501240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221501240 is an abundant number, since it is smaller than the sum of its proper divisors (14026876640).

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

11221501240 is a wasteful number, since it uses less digits than its factorization.

11221501240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280537542 (or 280537538 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The spelling of 11221501240 in words is "eleven billion, two hundred twenty-one million, five hundred one thousand, two hundred forty".