2211021111010 has 8 divisors (see below), whose sum is σ = 3979837999836. Its totient is φ = 884408444400.

The previous prime is 2211021110953. The next prime is 2211021111017. The reversal of 2211021111010 is 101111201122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2103169953361 + 107851157649 = 1450231^2 + 328407^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2211021111010² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2211021111017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110551055541 + ... + 110551055560.

Almost surely, 2^{2211021111010} is an apocalyptic number.

2211021111010 is a deficient number, since it is larger than the sum of its proper divisors (1768816888826).

2211021111010 is a wasteful number, since it uses less digits than its factorization.

2211021111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221102111108.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2211021111010 its reverse (101111201122), we get a palindrome (2312132312132).

The spelling of 2211021111010 in words is "two trillion, two hundred eleven billion, twenty-one million, one hundred eleven thousand, ten".