1211012010110 has 32 divisors (see below), whose sum is σ = 2533448862720. Its totient is φ = 408166758432.

The previous prime is 1211012010079. The next prime is 1211012010113. The reversal of 1211012010110 is 110102101121.

It is a junction number, because it is equal to n+sod(n) for n = 1211012010091 and 1211012010100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211012010113) 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 15 ways as a sum of consecutive naturals, for example, 146607494 + ... + 146615753.

It is an arithmetic number, because the mean of its divisors is an integer number (79170276960).

Almost surely, 2^{1211012010110} is an apocalyptic number.

1211012010110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211012010110 is an abundant number, since it is smaller than the sum of its proper divisors (1322436852610).

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

1211012010110 is a wasteful number, since it uses less digits than its factorization.

1211012010110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293223320.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1211012010110 its reverse (110102101121), we get a palindrome (1321114111231).

The spelling of 1211012010110 in words is "one trillion, two hundred eleven billion, twelve million, ten thousand, one hundred ten".