20210111002 has 16 divisors (see below), whose sum is σ = 30495789792. Its totient is φ = 10044985840.

The previous prime is 20210110981. The next prime is 20210111039. The reversal of 20210111002 is 20011101202.

It is a super-2 number, since 2×20210111002² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20210111002.

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 7 ways as a sum of consecutive naturals, for example, 262377 + ... + 330547.

It is an arithmetic number, because the mean of its divisors is an integer number (1905986862).

Almost surely, 2^20210111002 is an apocalyptic number.

20210111002 is a deficient number, since it is larger than the sum of its proper divisors (10285678790).

20210111002 is a wasteful number, since it uses less digits than its factorization.

20210111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69053.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20210111002 its reverse (20011101202), we get a palindrome (40221212204).

The spelling of 20210111002 in words is "twenty billion, two hundred ten million, one hundred eleven thousand, two".