1220011122 has 32 divisors (see below), whose sum is σ = 2682180864. Its totient is φ = 366875600.

The previous prime is 1220011097. The next prime is 1220011123. The reversal of 1220011122 is 2211100221.

1220011122 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1220011098 and 1220011107.

It is not an unprimeable number, because it can be changed into a prime (1220011123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61908 + ... + 79199.

It is an arithmetic number, because the mean of its divisors is an integer number (83818152).

Almost surely, 2^1220011122 is an apocalyptic number.

1220011122 is an abundant number, since it is smaller than the sum of its proper divisors (1462169742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220011122 is a wasteful number, since it uses less digits than its factorization.

1220011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141254.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1220011122 is about 34928.6576037500. The cubic root of 1220011122 is about 1068.5329771848.

Adding to 1220011122 its reverse (2211100221), we get a palindrome (3431111343).

The spelling of 1220011122 in words is "one billion, two hundred twenty million, eleven thousand, one hundred twenty-two".