1011012222111 has 8 divisors (see below), whose sum is σ = 1427311372464. Its totient is φ = 634360609920.

The previous prime is 1011012222089. The next prime is 1011012222119. The reversal of 1011012222111 is 1112222101101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1011012222111 - 2⁷ = 1011012221983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011012222119) 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, 9911884480 + ... + 9911884581.

It is an arithmetic number, because the mean of its divisors is an integer number (178413921558).

Almost surely, 2^{1011012222111} is an apocalyptic number.

1011012222111 is a deficient number, since it is larger than the sum of its proper divisors (416299150353).

1011012222111 is a wasteful number, since it uses less digits than its factorization.

1011012222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19823769081.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1011012222111 its reverse (1112222101101), we get a palindrome (2123234323212).

The spelling of 1011012222111 in words is "one trillion, eleven billion, twelve million, two hundred twenty-two thousand, one hundred eleven".