1211100000010 has 16 divisors (see below), whose sum is σ = 2181679150176. Its totient is φ = 484062411088.

The previous prime is 1211099999987. The next prime is 1211100000079. The reversal of 1211100000010 is 100000011121.

It is a junction number, because it is equal to n+sod(n) for n = 1211099999939 and 1211100000002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47185144 + ... + 47210803.

It is an arithmetic number, because the mean of its divisors is an integer number (136354946886).

Almost surely, 2^{1211100000010} is an apocalyptic number.

1211100000010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211100000010 is a deficient number, since it is larger than the sum of its proper divisors (970579150166).

1211100000010 is a wasteful number, since it uses less digits than its factorization.

1211100000010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94397237.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 1211100000010 its reverse (100000011121), we get a palindrome (1311100011131).

The spelling of 1211100000010 in words is "one trillion, two hundred eleven billion, one hundred million, ten", and thus it is an aban number.