120200101010001 has 20 divisors (see below), whose sum is σ = 180868819216932. Its totient is φ = 79548485332608.

The previous prime is 120200101009999. The next prime is 120200101010039. The reversal of 120200101010001 is 100010101002021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42371975909376 + 77828125100625 = 6509376^2 + 8822025^2 .

It is not a de Polignac number, because 120200101010001 - 2¹ = 120200101009999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (120200101012001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5415871620 + ... + 5415893813.

Almost surely, 2^{120200101010001} is an apocalyptic number.

It is an amenable number.

120200101010001 is a deficient number, since it is larger than the sum of its proper divisors (60668718206931).

120200101010001 is a wasteful number, since it uses less digits than its factorization.

120200101010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10831765582 (or 10831765573 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 120200101010001 its reverse (100010101002021), we get a palindrome (220210202012022).

The spelling of 120200101010001 in words is "one hundred twenty trillion, two hundred billion, one hundred one million, ten thousand, one".