1220122012011 has 64 divisors (see below), whose sum is σ = 1929175105536. Its totient is φ = 671222505600.

The previous prime is 1220122012007. The next prime is 1220122012063. The reversal of 1220122012011 is 1102102210221.

It is not a de Polignac number, because 1220122012011 - 2² = 1220122012007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220122062011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 340719241 + ... + 340722821.

It is an arithmetic number, because the mean of its divisors is an integer number (30143361024).

Almost surely, 2^{1220122012011} is an apocalyptic number.

1220122012011 is a deficient number, since it is larger than the sum of its proper divisors (709053093525).

1220122012011 is a wasteful number, since it uses less digits than its factorization.

1220122012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6192.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1220122012011 its reverse (1102102210221), we get a palindrome (2322224222232).

The spelling of 1220122012011 in words is "one trillion, two hundred twenty billion, one hundred twenty-two million, twelve thousand, eleven".