11201021221012 has 24 divisors (see below), whose sum is σ = 23719809645504. Its totient is φ = 4518058979712.

The previous prime is 11201021220979. The next prime is 11201021221043. The reversal of 11201021221012 is 21012212010211.

It is a super-2 number, since 2×11201021221012² (a number of 27 digits) contains 22 as substring.

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, 11765778118 + ... + 11765779069.

It is an arithmetic number, because the mean of its divisors is an integer number (988325401896).

Almost surely, 2^{11201021221012} is an apocalyptic number.

It is an amenable number.

11201021221012 is an abundant number, since it is smaller than the sum of its proper divisors (12518788424492).

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

11201021221012 is a wasteful number, since it uses less digits than its factorization.

11201021221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23531557215 (or 23531557213 counting only the distinct ones).

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

Adding to 11201021221012 its reverse (21012212010211), we get a palindrome (32213233231223).

The spelling of 11201021221012 in words is "eleven trillion, two hundred one billion, twenty-one million, two hundred twenty-one thousand, twelve".