1210102211011 has 4 divisors (see below), whose sum is σ = 1213213014000. Its totient is φ = 1206991408024.

The previous prime is 1210102210979. The next prime is 1210102211027. The reversal of 1210102211011 is 1101122010121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1210102211011 - 2⁵ = 1210102210979 is a prime.

It is a super-2 number, since 2×1210102211011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210102210982 and 1210102211000.

It is not an unprimeable number, because it can be changed into a prime (1210102211611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1555400911 + ... + 1555401688.

It is an arithmetic number, because the mean of its divisors is an integer number (303303253500).

Almost surely, 2^{1210102211011} is an apocalyptic number.

1210102211011 is a deficient number, since it is larger than the sum of its proper divisors (3110802989).

1210102211011 is an equidigital number, since it uses as much as digits as its factorization.

1210102211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110802988.

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

Adding to 1210102211011 its reverse (1101122010121), we get a palindrome (2311224221132).

The spelling of 1210102211011 in words is "one trillion, two hundred ten billion, one hundred two million, two hundred eleven thousand, eleven".