1201001010120 has 192 divisors, whose sum is σ = 4219734168000. Its totient is φ = 295210427904.

The previous prime is 1201001010113. The next prime is 1201001010127. The reversal of 1201001010120 is 210101001021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1201001010113) and next prime (1201001010127).

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 (1201001010127) 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, 2119690 + ... + 2625849.

It is an arithmetic number, because the mean of its divisors is an integer number (21977782125).

Almost surely, 2^{1201001010120} is an apocalyptic number.

1201001010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201001010120 is an abundant number, since it is smaller than the sum of its proper divisors (3018733157880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201001010120 is a wasteful number, since it uses less digits than its factorization.

1201001010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4745612 (or 4745605 counting only the distinct ones).

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

Adding to 1201001010120 its reverse (210101001021), we get a palindrome (1411102011141).

Subtracting from 1201001010120 its reverse (210101001021), we obtain a palindrome (990900009099).

The spelling of 1201001010120 in words is "one trillion, two hundred one billion, one million, ten thousand, one hundred twenty".