102102021002001 has 16 divisors (see below), whose sum is σ = 138054027017088. Its totient is φ = 67109022691200.

The previous prime is 102102021001999. The next prime is 102102021002081. The reversal of 102102021002001 is 100200120201201.

It is not a de Polignac number, because 102102021002001 - 2¹ = 102102021001999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102102021002081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56474581 + ... + 58254461.

It is an arithmetic number, because the mean of its divisors is an integer number (8628376688568).

Almost surely, 2^{102102021002001} is an apocalyptic number.

It is an amenable number.

102102021002001 is a deficient number, since it is larger than the sum of its proper divisors (35952006015087).

102102021002001 is a wasteful number, since it uses less digits than its factorization.

102102021002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049272.

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

Adding to 102102021002001 its reverse (100200120201201), we get a palindrome (202302141203202).

The spelling of 102102021002001 in words is "one hundred two trillion, one hundred two billion, twenty-one million, two thousand, one".