1220010222111 has 32 divisors (see below), whose sum is σ = 1742721619968. Its totient is φ = 756500413440.

The previous prime is 1220010222097. The next prime is 1220010222133. The reversal of 1220010222111 is 1112220100221.

It is not a de Polignac number, because 1220010222111 - 2¹¹ = 1220010220063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220010222191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1166596 + ... + 1949606.

It is an arithmetic number, because the mean of its divisors is an integer number (54460050624).

Almost surely, 2^{1220010222111} is an apocalyptic number.

1220010222111 is a deficient number, since it is larger than the sum of its proper divisors (522711397857).

1220010222111 is a wasteful number, since it uses less digits than its factorization.

1220010222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783391.

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

Adding to 1220010222111 its reverse (1112220100221), we get a palindrome (2332230322332).

The spelling of 1220010222111 in words is "one trillion, two hundred twenty billion, ten million, two hundred twenty-two thousand, one hundred eleven".