1011111121102 has 8 divisors (see below), whose sum is σ = 1518285325536. Its totient is φ = 505016012592.

The previous prime is 1011111121081. The next prime is 1011111121123. The reversal of 1011111121102 is 2011211111101.

It is an interprime number because it is at equal distance from previous prime (1011111121081) and next prime (1011111121123).

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

It is a super-2 number, since 2×1011111121102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269771638 + ... + 269775385.

It is an arithmetic number, because the mean of its divisors is an integer number (189785665692).

Almost surely, 2^{1011111121102} is an apocalyptic number.

1011111121102 is a deficient number, since it is larger than the sum of its proper divisors (507174204434).

1011111121102 is an equidigital number, since it uses as much as digits as its factorization.

1011111121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539547962.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1011111121102 its reverse (2011211111101), we get a palindrome (3022322232203).

The spelling of 1011111121102 in words is "one trillion, eleven billion, one hundred eleven million, one hundred twenty-one thousand, one hundred two".