11220212140 has 12 divisors (see below), whose sum is σ = 23562445536. Its totient is φ = 4488084848.

The previous prime is 11220212131. The next prime is 11220212167. The reversal of 11220212140 is 4121202211.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280505284 + ... + 280505323.

It is an arithmetic number, because the mean of its divisors is an integer number (1963537128).

Almost surely, 2^11220212140 is an apocalyptic number.

11220212140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11220212140 is an abundant number, since it is smaller than the sum of its proper divisors (12342233396).

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

11220212140 is a wasteful number, since it uses less digits than its factorization.

11220212140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561010616 (or 561010614 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11220212140 its reverse (4121202211), we get a palindrome (15341414351).

The spelling of 11220212140 in words is "eleven billion, two hundred twenty million, two hundred twelve thousand, one hundred forty".