102101021021201 has 4 divisors (see below), whose sum is σ = 102101124897252. Its totient is φ = 102100917145152.

The previous prime is 102101021021143. The next prime is 102101021021213. The reversal of 102101021021201 is 102120120101201.

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 81656163504400 + 20444857516801 = 9036380^2 + 4521599^2 .

It is a cyclic number.

It is not a de Polignac number, because 102101021021201 - 2⁴⁶ = 31732276843537 is a prime.

It is a super-3 number, since 3×102101021021201³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102101021021501) 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, 50449436 + ... + 52434221.

It is an arithmetic number, because the mean of its divisors is an integer number (25525281224313).

Almost surely, 2^{102101021021201} is an apocalyptic number.

It is an amenable number.

102101021021201 is a deficient number, since it is larger than the sum of its proper divisors (103876051).

102101021021201 is an equidigital number, since it uses as much as digits as its factorization.

102101021021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103876050.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102101021021201 its reverse (102120120101201), we get a palindrome (204221141122402).

The spelling of 102101021021201 in words is "one hundred two trillion, one hundred one billion, twenty-one million, twenty-one thousand, two hundred one".