2102211111010 has 16 divisors (see below), whose sum is σ = 3784041557496. Its totient is φ = 840870764928.

The previous prime is 2102211110977. The next prime is 2102211111017. The reversal of 2102211111010 is 101111122012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 327835259761 + 1774375851249 = 572569^2 + 1332057^2 .

It is not an unprimeable number, because it can be changed into a prime (2102211111017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052457 + ... + 2304796.

Almost surely, 2^{2102211111010} is an apocalyptic number.

2102211111010 is a deficient number, since it is larger than the sum of its proper divisors (1681830446486).

2102211111010 is a wasteful number, since it uses less digits than its factorization.

2102211111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3419877.

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

Adding to 2102211111010 its reverse (101111122012), we get a palindrome (2203322233022).

It can be divided in two parts, 210221 and 1111010, that added together give a palindrome (1321231).

The spelling of 2102211111010 in words is "two trillion, one hundred two billion, two hundred eleven million, one hundred eleven thousand, ten".