102012221121201 has 6 divisors (see below), whose sum is σ = 147350986063970. Its totient is φ = 68008147414128.

The previous prime is 102012221121113. The next prime is 102012221121263. The reversal of 102012221121201 is 102121122210201.

102012221121201 is a `hidden beast` number, since 10 + 201 + 22 + 211 + 21 + 201 = 666.

It can be written as a sum of positive squares in only one way, i.e., 92261115720225 + 9751105400976 = 9605265^2 + 3122676^2 .

It is not a de Polignac number, because 102012221121201 - 2¹⁷ = 102012220990129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102012221121271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5667345617836 + ... + 5667345617853.

Almost surely, 2^{102012221121201} is an apocalyptic number.

It is an amenable number.

102012221121201 is a deficient number, since it is larger than the sum of its proper divisors (45338764942769).

102012221121201 is a wasteful number, since it uses less digits than its factorization.

102012221121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11334691235695 (or 11334691235692 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102012221121201 its reverse (102121122210201), we get a palindrome (204133343331402).

The spelling of 102012221121201 in words is "one hundred two trillion, twelve billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred one".