102121000201111 has 4 divisors (see below), whose sum is σ = 107495789685400. Its totient is φ = 96746210716824.

The previous prime is 102121000201081. The next prime is 102121000201141. The reversal of 102121000201111 is 111102000121201.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (102121000201081) and next prime (102121000201141).

It is a cyclic number.

It is not a de Polignac number, because 102121000201111 - 2⁹ = 102121000200599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102121000201091 and 102121000201100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121000201141) 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, 2687394742116 + ... + 2687394742153.

It is an arithmetic number, because the mean of its divisors is an integer number (26873947421350).

Almost surely, 2^{102121000201111} is an apocalyptic number.

102121000201111 is a deficient number, since it is larger than the sum of its proper divisors (5374789484289).

102121000201111 is an equidigital number, since it uses as much as digits as its factorization.

102121000201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5374789484288.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102121000201111 its reverse (111102000121201), we get a palindrome (213223000322312).

The spelling of 102121000201111 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred one thousand, one hundred eleven".