1011111222002 has 48 divisors (see below), whose sum is σ = 1873961367768. Its totient is φ = 406556398080.

The previous prime is 1011111221977. The next prime is 1011111222059. The reversal of 1011111222002 is 2002221111101.

It can be written as a sum of positive squares in 4 ways, for example, as 903068189401 + 108043032601 = 950299^2 + 328699^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 429149 + ... + 1485392.

Almost surely, 2^{1011111222002} is an apocalyptic number.

1011111222002 is a deficient number, since it is larger than the sum of its proper divisors (862850145766).

1011111222002 is a wasteful number, since it uses less digits than its factorization.

1011111222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914891 (or 1914884 counting only the distinct ones).

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

Adding to 1011111222002 its reverse (2002221111101), we get a palindrome (3013332333103).

The spelling of 1011111222002 in words is "one trillion, eleven billion, one hundred eleven million, two hundred twenty-two thousand, two".