20211010002 has 40 divisors (see below), whose sum is σ = 45413913600. Its totient is φ = 6718217976.

The previous prime is 20211009979. The next prime is 20211010003. The reversal of 20211010002 is 20001011202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20211010003) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 115602 + ... + 231917.

It is an arithmetic number, because the mean of its divisors is an integer number (1135347840).

Almost surely, 2^20211010002 is an apocalyptic number.

20211010002 is an abundant number, since it is smaller than the sum of its proper divisors (25202903598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20211010002 is a wasteful number, since it uses less digits than its factorization.

20211010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347892 (or 347883 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20211010002 its reverse (20001011202), we get a palindrome (40212021204).

The spelling of 20211010002 in words is "twenty billion, two hundred eleven million, ten thousand, two".