2121211022210 has 32 divisors (see below), whose sum is σ = 4437594011520. Its totient is φ = 714945699072.

The previous prime is 2121211022197. The next prime is 2121211022257. The reversal of 2121211022210 is 122201121212.

It is a super-3 number, since 3×2121211022210³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 256801079 + ... + 256809338.

It is an arithmetic number, because the mean of its divisors is an integer number (138674812860).

Almost surely, 2^{2121211022210} is an apocalyptic number.

2121211022210 is an abundant number, since it is smaller than the sum of its proper divisors (2316382989310).

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

2121211022210 is a wasteful number, since it uses less digits than its factorization.

2121211022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513610490.

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

Adding to 2121211022210 its reverse (122201121212), we get a palindrome (2243412143422).

The spelling of 2121211022210 in words is "two trillion, one hundred twenty-one billion, two hundred eleven million, twenty-two thousand, two hundred ten".