120202102020001 has 4 divisors (see below), whose sum is σ = 120202123972500. Its totient is φ = 120202080067504.

The previous prime is 120202102019981. The next prime is 120202102020019. The reversal of 120202102020001 is 100020201202021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 47291423519376 + 72910678500625 = 6876876^2 + 8538775^2 .

It is a cyclic number.

It is not a de Polignac number, because 120202102020001 - 2¹⁷ = 120202101888929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120202102020901) 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, 4700175 + ... + 16201723.

It is an arithmetic number, because the mean of its divisors is an integer number (30050530993125).

Almost surely, 2^{120202102020001} is an apocalyptic number.

It is an amenable number.

120202102020001 is a deficient number, since it is larger than the sum of its proper divisors (21952499).

120202102020001 is a wasteful number, since it uses less digits than its factorization.

120202102020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21952498.

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

Adding to 120202102020001 its reverse (100020201202021), we get a palindrome (220222303222022).

The spelling of 120202102020001 in words is "one hundred twenty trillion, two hundred two billion, one hundred two million, twenty thousand, one".