102121001201 has 2 divisors, whose sum is σ = 102121001202. Its totient is φ = 102121001200.

The previous prime is 102121001123. The next prime is 102121001237. The reversal of 102121001201 is 102100121201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56359234801 + 45761766400 = 237401^2 + 213920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102121001201 is a prime.

It is not a weakly prime, because it can be changed into another prime (102121001261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51060500600 + 51060500601.

It is an arithmetic number, because the mean of its divisors is an integer number (51060500601).

Almost surely, 2^102121001201 is an apocalyptic number.

It is an amenable number.

102121001201 is a deficient number, since it is larger than the sum of its proper divisors (1).

102121001201 is an equidigital number, since it uses as much as digits as its factorization.

102121001201 is an evil number, because the sum of its binary digits is even.

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

Adding to 102121001201 its reverse (102100121201), we get a palindrome (204221122402).

The spelling of 102121001201 in words is "one hundred two billion, one hundred twenty-one million, one thousand, two hundred one".