102011002121 has 8 divisors (see below), whose sum is σ = 116586001920. Its totient is φ = 87436502208.

The previous prime is 102011002087. The next prime is 102011002129. The reversal of 102011002121 is 121200110201.

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 102011002121 - 2¹⁸ = 102010739977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102011002129) 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, 569960 + ... + 727238.

It is an arithmetic number, because the mean of its divisors is an integer number (14573250240).

Almost surely, 2^102011002121 is an apocalyptic number.

It is an amenable number.

102011002121 is a deficient number, since it is larger than the sum of its proper divisors (14574999799).

102011002121 is an equidigital number, since it uses as much as digits as its factorization.

102011002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249943.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102011002121 its reverse (121200110201), we get a palindrome (223211112322).

The spelling of 102011002121 in words is "one hundred two billion, eleven million, two thousand, one hundred twenty-one".