1212101010011 has 8 divisors (see below), whose sum is σ = 1251213727104. Its totient is φ = 1172989085760.

The previous prime is 1212101009969. The next prime is 1212101010031. The reversal of 1212101010011 is 1100101012121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212101010011 - 2¹⁴ = 1212100993627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212101009974 and 1212101010001.

It is not an unprimeable number, because it can be changed into a prime (1212101010031) 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, 5620895 + ... + 5832551.

It is an arithmetic number, because the mean of its divisors is an integer number (156401715888).

Almost surely, 2^{1212101010011} is an apocalyptic number.

1212101010011 is a deficient number, since it is larger than the sum of its proper divisors (39112717093).

1212101010011 is a wasteful number, since it uses less digits than its factorization.

1212101010011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396421.

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

Adding to 1212101010011 its reverse (1100101012121), we get a palindrome (2312202022132).

The spelling of 1212101010011 in words is "one trillion, two hundred twelve billion, one hundred one million, ten thousand, eleven".