2121211021310 has 16 divisors (see below), whose sum is σ = 3824408527776. Its totient is φ = 847100255328.

The previous prime is 2121211021277. The next prime is 2121211021331. The reversal of 2121211021310 is 131201121212.

It is a happy number.

It is a super-3 number, since 3×2121211021310³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173012714 + ... + 173024973.

It is an arithmetic number, because the mean of its divisors is an integer number (239025532986).

Almost surely, 2^{2121211021310} is an apocalyptic number.

2121211021310 is a deficient number, since it is larger than the sum of its proper divisors (1703197506466).

2121211021310 is a wasteful number, since it uses less digits than its factorization.

2121211021310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346038307.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2121211021310 its reverse (131201121212), we get a palindrome (2252412142522).

The spelling of 2121211021310 in words is "two trillion, one hundred twenty-one billion, two hundred eleven million, twenty-one thousand, three hundred ten".