1012222211122 has 4 divisors (see below), whose sum is σ = 1518333316686. Its totient is φ = 506111105560.

The previous prime is 1012222211113. The next prime is 1012222211129. The reversal of 1012222211122 is 2211122222101.

1012222211122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 619934194881 + 392288016241 = 787359^2 + 626329^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1012222211122.

It is not an unprimeable number, because it can be changed into a prime (1012222211129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253055552779 + ... + 253055552782.

Almost surely, 2^{1012222211122} is an apocalyptic number.

1012222211122 is a deficient number, since it is larger than the sum of its proper divisors (506111105564).

1012222211122 is an equidigital number, since it uses as much as digits as its factorization.

1012222211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506111105563.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1012222211122 its reverse (2211122222101), we get a palindrome (3223344433223).

The spelling of 1012222211122 in words is "one trillion, twelve billion, two hundred twenty-two million, two hundred eleven thousand, one hundred twenty-two".