102012221120111 has 4 divisors (see below), whose sum is σ = 102012269447232. Its totient is φ = 102012172792992.

The previous prime is 102012221120107. The next prime is 102012221120113. The reversal of 102012221120111 is 111021122210201.

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

It is a cyclic number.

It is not a de Polignac number, because 102012221120111 - 2² = 102012221120107 is a prime.

It is a super-3 number, since 3×102012221120111³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102012221120111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012221120113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20845370 + ... + 25269623.

It is an arithmetic number, because the mean of its divisors is an integer number (25503067361808).

Almost surely, 2^{102012221120111} is an apocalyptic number.

102012221120111 is a deficient number, since it is larger than the sum of its proper divisors (48327121).

102012221120111 is an equidigital number, since it uses as much as digits as its factorization.

102012221120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48327120.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102012221120111 its reverse (111021122210201), we get a palindrome (213033343330312).

The spelling of 102012221120111 in words is "one hundred two trillion, twelve billion, two hundred twenty-one million, one hundred twenty thousand, one hundred eleven".