20211101012 has 12 divisors (see below), whose sum is σ = 35448203700. Its totient is φ = 10083042816.

The previous prime is 20211100997. The next prime is 20211101017. The reversal of 20211101012 is 21010111202.

It can be written as a sum of positive squares in 2 ways, for example, as 15444027076 + 4767073936 = 124274^2 + 69044^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20211100984 and 20211101002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211101017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5624903 + ... + 5628494.

It is an arithmetic number, because the mean of its divisors is an integer number (2954016975).

Almost surely, 2^20211101012 is an apocalyptic number.

It is an amenable number.

20211101012 is a deficient number, since it is larger than the sum of its proper divisors (15237102688).

20211101012 is a wasteful number, since it uses less digits than its factorization.

20211101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11253850 (or 11253848 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20211101012 its reverse (21010111202), we get a palindrome (41221212214).

The spelling of 20211101012 in words is "twenty billion, two hundred eleven million, one hundred one thousand, twelve".