102120022002001 has 4 divisors (see below), whose sum is σ = 102120598760292. Its totient is φ = 102119445243712.

The previous prime is 102120022001981. The next prime is 102120022002017. The reversal of 102120022002001 is 100200220021201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46925226339601 + 55194795662400 = 6850199^2 + 7429320^2 .

It is a cyclic number.

It is not a de Polignac number, because 102120022002001 - 2⁹ = 102120022001489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102120022006001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288113476 + ... + 288467701.

It is an arithmetic number, because the mean of its divisors is an integer number (25530149690073).

Almost surely, 2^{102120022002001} is an apocalyptic number.

It is an amenable number.

102120022002001 is a deficient number, since it is larger than the sum of its proper divisors (576758291).

102120022002001 is an equidigital number, since it uses as much as digits as its factorization.

102120022002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576758290.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102120022002001 its reverse (100200220021201), we get a palindrome (202320242023202).

The spelling of 102120022002001 in words is "one hundred two trillion, one hundred twenty billion, twenty-two million, two thousand, one".