2101111111010 has 32 divisors (see below), whose sum is σ = 3798939927600. Its totient is φ = 836680838400.

The previous prime is 2101111110997. The next prime is 2101111111013. The reversal of 2101111111010 is 101111111012.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1710657342241 + 390453768769 = 1307921^2 + 624863^2 .

It is a super-3 number, since 3×2101111111010³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2101111110982 and 2101111111000.

It is not an unprimeable number, because it can be changed into a prime (2101111111013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22626956 + ... + 22719624.

Almost surely, 2^{2101111111010} is an apocalyptic number.

2101111111010 is a deficient number, since it is larger than the sum of its proper divisors (1697828816590).

2101111111010 is a wasteful number, since it uses less digits than its factorization.

2101111111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102806.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 2101111111010 its reverse (101111111012), we get a palindrome (2202222222022).

The spelling of 2101111111010 in words is "two trillion, one hundred one billion, one hundred eleven million, one hundred eleven thousand, ten".