1212210122311 has 16 divisors (see below), whose sum is σ = 1323707387904. Its totient is φ = 1105596342144.

The previous prime is 1212210122297. The next prime is 1212210122329. The reversal of 1212210122311 is 1132210122121.

It is a cyclic number.

It is not a de Polignac number, because 1212210122311 - 2¹⁹ = 1212209598023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212210122351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6435865 + ... + 6621538.

It is an arithmetic number, because the mean of its divisors is an integer number (82731711744).

Almost surely, 2^{1212210122311} is an apocalyptic number.

1212210122311 is a deficient number, since it is larger than the sum of its proper divisors (111497265593).

1212210122311 is a wasteful number, since it uses less digits than its factorization.

1212210122311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13057590.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1212210122311 its reverse (1132210122121), we get a palindrome (2344420244432).

The spelling of 1212210122311 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred twenty-two thousand, three hundred eleven".