2111020002 has 128 divisors (see below), whose sum is σ = 5798822400. Its totient is φ = 554335488.

The previous prime is 2111020001. The next prime is 2111020003. The reversal of 2111020002 is 2000201112.

It is an interprime number because it is at equal distance from previous prime (2111020001) and next prime (2111020003).

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 (2111020001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1321068 + ... + 1322664.

It is an arithmetic number, because the mean of its divisors is an integer number (45303300).

Almost surely, 2^2111020002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111020002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2899411200).

2111020002 is an abundant number, since it is smaller than the sum of its proper divisors (3687802398).

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

2111020002 is a wasteful number, since it uses less digits than its factorization.

2111020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897 (or 1891 counting only the distinct ones).

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

The square root of 2111020002 is about 45945.8377004925. The cubic root of 2111020002 is about 1282.8152557645.

Adding to 2111020002 its reverse (2000201112), we get a palindrome (4111221114).

The spelling of 2111020002 in words is "two billion, one hundred eleven million, twenty thousand, two".