1220211012011 has 8 divisors (see below), whose sum is σ = 1227507662304. Its totient is φ = 1212934491520.

The previous prime is 1220211011977. The next prime is 1220211012017. The reversal of 1220211012011 is 1102101120221.

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 1220211012011 - 2¹⁰ = 1220211010987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220211012017) 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, 4910846 + ... + 5153331.

It is an arithmetic number, because the mean of its divisors is an integer number (153438457788).

Almost surely, 2^{1220211012011} is an apocalyptic number.

1220211012011 is a deficient number, since it is larger than the sum of its proper divisors (7296650293).

1220211012011 is a wasteful number, since it uses less digits than its factorization.

1220211012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10064901.

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

Adding to 1220211012011 its reverse (1102101120221), we get a palindrome (2322312132232).

The spelling of 1220211012011 in words is "one trillion, two hundred twenty billion, two hundred eleven million, twelve thousand, eleven".