11221201012 has 24 divisors (see below), whose sum is σ = 22580094656. Its totient is φ = 4779580608.

The previous prime is 11221201003. The next prime is 11221201031. The reversal of 11221201012 is 21010212211.

It is a junction number, because it is equal to n+sod(n) for n = 11221200983 and 11221201001.

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, 1224753 + ... + 1233880.

Almost surely, 2^11221201012 is an apocalyptic number.

It is an amenable number.

11221201012 is an abundant number, since it is smaller than the sum of its proper divisors (11358893644).

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

11221201012 is a wasteful number, since it uses less digits than its factorization.

11221201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458807 (or 2458805 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11221201012 its reverse (21010212211), we get a palindrome (32231413223).

The spelling of 11221201012 in words is "eleven billion, two hundred twenty-one million, two hundred one thousand, twelve".