11220642140 has 24 divisors (see below), whose sum is σ = 23570689632. Its totient is φ = 4486858560.

The previous prime is 11220642101. The next prime is 11220642187. The reversal of 11220642140 is 4124602211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20339 + ... + 151178.

It is an arithmetic number, because the mean of its divisors is an integer number (982112068).

Almost surely, 2^11220642140 is an apocalyptic number.

11220642140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11220642140 is an abundant number, since it is smaller than the sum of its proper divisors (12350047492).

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

11220642140 is a wasteful number, since it uses less digits than its factorization.

11220642140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174797 (or 174795 counting only the distinct ones).

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

The spelling of 11220642140 in words is "eleven billion, two hundred twenty million, six hundred forty-two thousand, one hundred forty".