2121251002 has 8 divisors (see below), whose sum is σ = 3426636276. Its totient is φ = 979038912.

The previous prime is 2121250997. The next prime is 2121251053. The reversal of 2121251002 is 2001521212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1862008801 + 259242201 = 43151^2 + 16101^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2121251002³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40793263 + ... + 40793314.

Almost surely, 2^2121251002 is an apocalyptic number.

2121251002 is a deficient number, since it is larger than the sum of its proper divisors (1305385274).

2121251002 is a wasteful number, since it uses less digits than its factorization.

2121251002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81586592.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 2121251002 is about 46057.0407429744. The cubic root of 2121251002 is about 1284.8842930532.

Adding to 2121251002 its reverse (2001521212), we get a palindrome (4122772214).

The spelling of 2121251002 in words is "two billion, one hundred twenty-one million, two hundred fifty-one thousand, two".