2101025002 has 16 divisors (see below), whose sum is σ = 3451989960. Its totient is φ = 954623488.

The previous prime is 2101024957. The next prime is 2101025009. The reversal of 2101025002 is 2005201012.

It can be written as a sum of positive squares in 4 ways, for example, as 1857696201 + 243328801 = 43101^2 + 15599^2 .

It is not an unprimeable number, because it can be changed into a prime (2101025009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1064443 + ... + 1066414.

Almost surely, 2^2101025002 is an apocalyptic number.

2101025002 is a deficient number, since it is larger than the sum of its proper divisors (1350964958).

2101025002 is a wasteful number, since it uses less digits than its factorization.

2101025002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130905.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 2101025002 is about 45836.9392739088. The cubic root of 2101025002 is about 1280.7874797026.

Adding to 2101025002 its reverse (2005201012), we get a palindrome (4106226014).

The spelling of 2101025002 in words is "two billion, one hundred one million, twenty-five thousand, two".