1220220111122 has 16 divisors (see below), whose sum is σ = 1840021333344. Its totient is φ = 606882864000.

The previous prime is 1220220111083. The next prime is 1220220111127. The reversal of 1220220111122 is 2211110220221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220220111122.

It is not an unprimeable number, because it can be changed into a prime (1220220111127) 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, 34079 + ... + 1562562.

It is an arithmetic number, because the mean of its divisors is an integer number (115001333334).

Almost surely, 2^{1220220111122} is an apocalyptic number.

1220220111122 is a deficient number, since it is larger than the sum of its proper divisors (619801222222).

1220220111122 is a wasteful number, since it uses less digits than its factorization.

1220220111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598665.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1220220111122 its reverse (2211110220221), we get a palindrome (3431330331343).

The spelling of 1220220111122 in words is "one trillion, two hundred twenty billion, two hundred twenty million, one hundred eleven thousand, one hundred twenty-two".