20211122011012 has 6 divisors (see below), whose sum is σ = 35369463519278. Its totient is φ = 10105561005504.

The previous prime is 20211122011007. The next prime is 20211122011019. The reversal of 20211122011012 is 21011022111202.

It can be written as a sum of positive squares in only one way, i.e., 13404209702976 + 6806912308036 = 3661176^2 + 2609006^2 .

It is not an unprimeable number, because it can be changed into a prime (20211122011019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2526390251373 + ... + 2526390251380.

Almost surely, 2^{20211122011012} is an apocalyptic number.

It is an amenable number.

20211122011012 is a deficient number, since it is larger than the sum of its proper divisors (15158341508266).

20211122011012 is a wasteful number, since it uses less digits than its factorization.

20211122011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5052780502757 (or 5052780502755 counting only the distinct ones).

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

Adding to 20211122011012 its reverse (21011022111202), we get a palindrome (41222144122214).

The spelling of 20211122011012 in words is "twenty trillion, two hundred eleven billion, one hundred twenty-two million, eleven thousand, twelve".