2121420002 has 8 divisors (see below), whose sum is σ = 3426909276. Its totient is φ = 979116912.

The previous prime is 2121419999. The next prime is 2121420011. The reversal of 2121420002 is 2000241212.

It can be written as a sum of positive squares in 2 ways, for example, as 1940490601 + 180929401 = 44051^2 + 13451^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40796513 + ... + 40796564.

Almost surely, 2^2121420002 is an apocalyptic number.

2121420002 is a deficient number, since it is larger than the sum of its proper divisors (1305489274).

2121420002 is a wasteful number, since it uses less digits than its factorization.

2121420002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81593092.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2121420002 is about 46058.8753879206. The cubic root of 2121420002 is about 1284.9184143774.

Adding to 2121420002 its reverse (2000241212), we get a palindrome (4121661214).

The spelling of 2121420002 in words is "two billion, one hundred twenty-one million, four hundred twenty thousand, two".