2121121202210 has 64 divisors (see below), whose sum is σ = 3891281264640. Its totient is φ = 832292314560.

The previous prime is 2121121202201. The next prime is 2121121202237. The reversal of 2121121202210 is 122021211212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 567294521 + ... + 567298259.

It is an arithmetic number, because the mean of its divisors is an integer number (60801269760).

Almost surely, 2^{2121121202210} is an apocalyptic number.

2121121202210 is a deficient number, since it is larger than the sum of its proper divisors (1770160062430).

2121121202210 is a wasteful number, since it uses less digits than its factorization.

2121121202210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7623.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2121121202210 its reverse (122021211212), we get a palindrome (2243142413422).

The spelling of 2121121202210 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred two thousand, two hundred ten".