2120011002 has 32 divisors (see below), whose sum is σ = 4712693760. Its totient is φ = 706436640.

The previous prime is 2120011001. The next prime is 2120011079. The reversal of 2120011002 is 2001100212.

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 (2120011001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254727 + ... + 262917.

It is an arithmetic number, because the mean of its divisors is an integer number (147271680).

Almost surely, 2^2120011002 is an apocalyptic number.

2120011002 is an abundant number, since it is smaller than the sum of its proper divisors (2592682758).

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

2120011002 is a wasteful number, since it uses less digits than its factorization.

2120011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12995 (or 12989 counting only the distinct ones).

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

The square root of 2120011002 is about 46043.5772068157. The cubic root of 2120011002 is about 1284.6338799598.

Adding to 2120011002 its reverse (2001100212), we get a palindrome (4121111214).

The spelling of 2120011002 in words is "two billion, one hundred twenty million, eleven thousand, two".