1201010020101 has 48 divisors (see below), whose sum is σ = 1853919684864. Its totient is φ = 748071821952.

The previous prime is 1201010020043. The next prime is 1201010020117. The reversal of 1201010020101 is 1010200101021.

It is a happy number.

It is not a de Polignac number, because 1201010020101 - 2⁶ = 1201010020037 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201010020121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105570 + ... + 1553436.

It is an arithmetic number, because the mean of its divisors is an integer number (38623326768).

Almost surely, 2^{1201010020101} is an apocalyptic number.

It is an amenable number.

1201010020101 is a deficient number, since it is larger than the sum of its proper divisors (652909664763).

1201010020101 is a wasteful number, since it uses less digits than its factorization.

1201010020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448010 (or 1448007 counting only the distinct ones).

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

Adding to 1201010020101 its reverse (1010200101021), we get a palindrome (2211210121122).

The spelling of 1201010020101 in words is "one trillion, two hundred one billion, ten million, twenty thousand, one hundred one".