2101120002 has 24 divisors (see below), whose sum is σ = 4582581120. Its totient is φ = 695734200.

The previous prime is 2101120001. The next prime is 2101120003. The reversal of 2101120002 is 2000211012.

It is an interprime number because it is at equal distance from previous prime (2101120001) and next prime (2101120003).

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 (2101120001) 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, 383802 + ... + 389237.

It is an arithmetic number, because the mean of its divisors is an integer number (190940880).

Almost surely, 2^2101120002 is an apocalyptic number.

2101120002 is an abundant number, since it is smaller than the sum of its proper divisors (2481461118).

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

2101120002 is a wasteful number, since it uses less digits than its factorization.

2101120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773198 (or 773195 counting only the distinct ones).

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

The square root of 2101120002 is about 45837.9755443017. The cubic root of 2101120002 is about 1280.8067834515.

Adding to 2101120002 its reverse (2000211012), we get a palindrome (4101331014).

The spelling of 2101120002 in words is "two billion, one hundred one million, one hundred twenty thousand, two".