2121102100002 has 32 divisors (see below), whose sum is σ = 4355675489088. Its totient is φ = 688234389696.

The previous prime is 2121102099983. The next prime is 2121102100021. The reversal of 2121102100002 is 2000012011212.

It is an interprime number because it is at equal distance from previous prime (2121102099983) and next prime (2121102100021).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13953973 + ... + 14105160.

It is an arithmetic number, because the mean of its divisors is an integer number (136114859034).

Almost surely, 2^{2121102100002} is an apocalyptic number.

2121102100002 is an abundant number, since it is smaller than the sum of its proper divisors (2234573389086).

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

2121102100002 is a wasteful number, since it uses less digits than its factorization.

2121102100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28059474.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2121102100002 its reverse (2000012011212), we get a palindrome (4121114111214).

The spelling of 2121102100002 in words is "two trillion, one hundred twenty-one billion, one hundred two million, one hundred thousand, two".