102100022121 has 8 divisors (see below), whose sum is σ = 136134977184. Its totient is φ = 68065874240.

The previous prime is 102100022119. The next prime is 102100022279. The reversal of 102100022121 is 121220001201.

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 102100022121 - 2¹ = 102100022119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102100022097 and 102100022106.

It is not an unprimeable number, because it can be changed into a prime (102100022111) 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, 218266 + ... + 501836.

It is an arithmetic number, because the mean of its divisors is an integer number (17016872148).

Almost surely, 2^102100022121 is an apocalyptic number.

It is an amenable number.

102100022121 is a deficient number, since it is larger than the sum of its proper divisors (34034955063).

102100022121 is a wasteful number, since it uses less digits than its factorization.

102100022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403591.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102100022121 its reverse (121220001201), we get a palindrome (223320023322).

The spelling of 102100022121 in words is "one hundred two billion, one hundred million, twenty-two thousand, one hundred twenty-one".