20211102221012 has 12 divisors (see below), whose sum is σ = 35369478898740. Its totient is φ = 10105536821376.

The previous prime is 20211102221003. The next prime is 20211102221047. The reversal of 20211102221012 is 21012220111202.

It can be written as a sum of positive squares in 2 ways, for example, as 11564597256976 + 8646504964036 = 3400676^2 + 2940494^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9164 + ... + 6357852.

It is an arithmetic number, because the mean of its divisors is an integer number (2947456574895).

Almost surely, 2^{20211102221012} is an apocalyptic number.

It is an amenable number.

20211102221012 is a deficient number, since it is larger than the sum of its proper divisors (15158376677728).

20211102221012 is a wasteful number, since it uses less digits than its factorization.

20211102221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144570 (or 7144568 counting only the distinct ones).

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

Adding to 20211102221012 its reverse (21012220111202), we get a palindrome (41223322332214).

The spelling of 20211102221012 in words is "twenty trillion, two hundred eleven billion, one hundred two million, two hundred twenty-one thousand, twelve".