11220222221012 has 48 divisors (see below), whose sum is σ = 22781095102080. Its totient is φ = 4736189649792.

The previous prime is 11220222220973. The next prime is 11220222221057. The reversal of 11220222221012 is 21012222202211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10305587 + ... + 11342202.

It is an arithmetic number, because the mean of its divisors is an integer number (474606147960).

Almost surely, 2^{11220222221012} is an apocalyptic number.

It is an amenable number.

11220222221012 is an abundant number, since it is smaller than the sum of its proper divisors (11560872881068).

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

11220222221012 is a wasteful number, since it uses less digits than its factorization.

11220222221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21648080 (or 21648078 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11220222221012 its reverse (21012222202211), we get a palindrome (32232444423223).

The spelling of 11220222221012 in words is "eleven trillion, two hundred twenty billion, two hundred twenty-two million, two hundred twenty-one thousand, twelve".