10011211002 has 24 divisors (see below), whose sum is σ = 23359492884. Its totient is φ = 3080372544.

The previous prime is 10011210973. The next prime is 10011211003. The reversal of 10011211002 is 20011211001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8217603801 + 1793607201 = 90651^2 + 42351^2 .

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 (10011211003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21391243 + ... + 21391710.

Almost surely, 2^10011211002 is an apocalyptic number.

10011211002 is an abundant number, since it is smaller than the sum of its proper divisors (13348281882).

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

10011211002 is a wasteful number, since it uses less digits than its factorization.

10011211002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42782974 (or 42782971 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10011211002 its reverse (20011211001), we get a palindrome (30022422003).

Subtracting 10011211002 from its reverse (20011211001), we obtain a palindrome (9999999999).

The spelling of 10011211002 in words is "ten billion, eleven million, two hundred eleven thousand, two".