11220021121012 has 24 divisors (see below), whose sum is σ = 21942480333312. Its totient is φ = 4975619121600.

The previous prime is 11220021121009. The next prime is 11220021121051. The reversal of 11220021121012 is 21012112002211.

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, 3109760148 + ... + 3109763755.

It is an arithmetic number, because the mean of its divisors is an integer number (914270013888).

Almost surely, 2^{11220021121012} is an apocalyptic number.

It is an amenable number.

11220021121012 is a deficient number, since it is larger than the sum of its proper divisors (10722459212300).

11220021121012 is a wasteful number, since it uses less digits than its factorization.

11220021121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6219523959 (or 6219523957 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11220021121012 its reverse (21012112002211), we get a palindrome (32232133123223).

It can be divided in two parts, 112200 and 21121012, that added together give a palindrome (21233212).

The spelling of 11220021121012 in words is "eleven trillion, two hundred twenty billion, twenty-one million, one hundred twenty-one thousand, twelve".