102120011111001 has 16 divisors (see below), whose sum is σ = 153009247418496. Its totient is φ = 60110775770496.

The previous prime is 102120011110973. The next prime is 102120011111087. The reversal of 102120011111001 is 100111110021201.

It is not a de Polignac number, because 102120011111001 - 2⁹ = 102120011110489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102120011111101) 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, 56923082220 + ... + 56923084013.

It is an arithmetic number, because the mean of its divisors is an integer number (9563077963656).

Almost surely, 2^{102120011111001} is an apocalyptic number.

It is an amenable number.

102120011111001 is a deficient number, since it is larger than the sum of its proper divisors (50889236307495).

102120011111001 is a wasteful number, since it uses less digits than its factorization.

102120011111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113846166272.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 102120011111001 its reverse (100111110021201), we get a palindrome (202231121132202).

The spelling of 102120011111001 in words is "one hundred two trillion, one hundred twenty billion, eleven million, one hundred eleven thousand, one".