1212211002011 has 8 divisors (see below), whose sum is σ = 1213124941824. Its totient is φ = 1211297187240.

The previous prime is 1212211001987. The next prime is 1212211002097. The reversal of 1212211002011 is 1102001122121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212211002011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212211002811) 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, 29615786 + ... + 29656688.

It is an arithmetic number, because the mean of its divisors is an integer number (151640617728).

Almost surely, 2^{1212211002011} is an apocalyptic number.

1212211002011 is a deficient number, since it is larger than the sum of its proper divisors (913939813).

1212211002011 is a wasteful number, since it uses less digits than its factorization.

1212211002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62521.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212211002011 its reverse (1102001122121), we get a palindrome (2314212124132).

The spelling of 1212211002011 in words is "one trillion, two hundred twelve billion, two hundred eleven million, two thousand, eleven".