120001220111101 has 16 divisors (see below), whose sum is σ = 145233440522496. Its totient is φ = 96793120279296.

The previous prime is 120001220111053. The next prime is 120001220111137. The reversal of 120001220111101 is 101111022100021.

It is a happy number.

It is not a de Polignac number, because 120001220111101 - 2²¹ = 120001218013949 is a prime.

It is a super-2 number, since 2×120001220111101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001220111161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75179281 + ... + 76758886.

It is an arithmetic number, because the mean of its divisors is an integer number (9077090032656).

Almost surely, 2^{120001220111101} is an apocalyptic number.

It is an amenable number.

120001220111101 is a deficient number, since it is larger than the sum of its proper divisors (25232220411395).

120001220111101 is a wasteful number, since it uses less digits than its factorization.

120001220111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151944828.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 120001220111101 its reverse (101111022100021), we get a palindrome (221112242211122).

The spelling of 120001220111101 in words is "one hundred twenty trillion, one billion, two hundred twenty million, one hundred eleven thousand, one hundred one".