2111221122010 has 64 divisors (see below), whose sum is σ = 5102363798784. Its totient is φ = 607424256000.

The previous prime is 2111221121957. The next prime is 2111221122011. The reversal of 2111221122010 is 102211221112.

It is not an unprimeable number, because it can be changed into a prime (2111221122011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105445591 + ... + 105465610.

It is an arithmetic number, because the mean of its divisors is an integer number (79724434356).

Almost surely, 2^{2111221122010} is an apocalyptic number.

2111221122010 is an abundant number, since it is smaller than the sum of its proper divisors (2991142676774).

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

2111221122010 is a wasteful number, since it uses less digits than its factorization.

2111221122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210911239.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2111221122010 its reverse (102211221112), we get a palindrome (2213432343122).

The spelling of 2111221122010 in words is "two trillion, one hundred eleven billion, two hundred twenty-one million, one hundred twenty-two thousand, ten".