2121011220002 has 8 divisors (see below), whose sum is σ = 3181530027036. Its totient is φ = 1060501210992.

The previous prime is 2121011220001. The next prime is 2121011220043. The reversal of 2121011220002 is 2000221101212.

It can be written as a sum of positive squares in 2 ways, for example, as 2109056203081 + 11955016921 = 1452259^2 + 109339^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2121011220001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1559573 + ... + 2583464.

Almost surely, 2^{2121011220002} is an apocalyptic number.

2121011220002 is a deficient number, since it is larger than the sum of its proper divisors (1060518807034).

2121011220002 is a wasteful number, since it uses less digits than its factorization.

2121011220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4399012.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2121011220002 its reverse (2000221101212), we get a palindrome (4121232321214).

The spelling of 2121011220002 in words is "two trillion, one hundred twenty-one billion, eleven million, two hundred twenty thousand, two".