1212002222011 has 4 divisors (see below), whose sum is σ = 1385145396592. Its totient is φ = 1038859047432.

The previous prime is 1212002221981. The next prime is 1212002222021. The reversal of 1212002222011 is 1102222002121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1212002222011 - 2⁵ = 1212002221979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212002222021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86571587280 + ... + 86571587293.

It is an arithmetic number, because the mean of its divisors is an integer number (346286349148).

Almost surely, 2^{1212002222011} is an apocalyptic number.

1212002222011 is a deficient number, since it is larger than the sum of its proper divisors (173143174581).

1212002222011 is an equidigital number, since it uses as much as digits as its factorization.

1212002222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173143174580.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212002222011 its reverse (1102222002121), we get a palindrome (2314224224132).

The spelling of 1212002222011 in words is "one trillion, two hundred twelve billion, two million, two hundred twenty-two thousand, eleven".