102111020200121 has 8 divisors (see below), whose sum is σ = 107485728957600. Its totient is φ = 96736355896320.

The previous prime is 102111020200093. The next prime is 102111020200139. The reversal of 102111020200121 is 121002020111201.

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

It is a cyclic number.

It is not a de Polignac number, because 102111020200121 - 2¹⁴ = 102111020183737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102111020200096 and 102111020200105.

It is not an unprimeable number, because it can be changed into a prime (102111020200921) 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, 6346031 + ... + 15636308.

It is an arithmetic number, because the mean of its divisors is an integer number (13435716119700).

Almost surely, 2^{102111020200121} is an apocalyptic number.

It is an amenable number.

102111020200121 is a deficient number, since it is larger than the sum of its proper divisors (5374708757479).

102111020200121 is a wasteful number, since it uses less digits than its factorization.

102111020200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22226839.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102111020200121 its reverse (121002020111201), we get a palindrome (223113040311322).

The spelling of 102111020200121 in words is "one hundred two trillion, one hundred eleven billion, twenty million, two hundred thousand, one hundred twenty-one".