20211120002 has 24 divisors (see below), whose sum is σ = 32447008512. Its totient is φ = 9438823800.

The previous prime is 20211119993. The next prime is 20211120043. The reversal of 20211120002 is 20002111202.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145874 + ... + 248397.

It is an arithmetic number, because the mean of its divisors is an integer number (1351958688).

Almost surely, 2^20211120002 is an apocalyptic number.

20211120002 is a deficient number, since it is larger than the sum of its proper divisors (12235888510).

20211120002 is a wasteful number, since it uses less digits than its factorization.

20211120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394382 (or 394363 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20211120002 its reverse (20002111202), we get a palindrome (40213231204).

The spelling of 20211120002 in words is "twenty billion, two hundred eleven million, one hundred twenty thousand, two".