11211222020012 has 48 divisors (see below), whose sum is σ = 24225929985600. Its totient is φ = 4522173578496.

The previous prime is 11211222019999. The next prime is 11211222020057. The reversal of 11211222020012 is 21002022211211.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 240313283 + ... + 240359930.

It is an arithmetic number, because the mean of its divisors is an integer number (504706874700).

Almost surely, 2^{11211222020012} is an apocalyptic number.

It is an amenable number.

11211222020012 is an abundant number, since it is smaller than the sum of its proper divisors (13014707965588).

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

11211222020012 is a wasteful number, since it uses less digits than its factorization.

11211222020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480673255 (or 480673239 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11211222020012 its reverse (21002022211211), we get a palindrome (32213244231223).

The spelling of 11211222020012 in words is "eleven trillion, two hundred eleven billion, two hundred twenty-two million, twenty thousand, twelve".