120221102021111 has 64 divisors (see below), whose sum is σ = 151090848733440. Its totient is φ = 93125679575040.

The previous prime is 120221102021093. The next prime is 120221102021129. The reversal of 120221102021111 is 111120201122021.

It is an interprime number because it is at equal distance from previous prime (120221102021093) and next prime (120221102021129).

It is not a de Polignac number, because 120221102021111 - 2³⁰ = 120220028279287 is a prime.

It is a super-2 number, since 2×120221102021111² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120221102021111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221102021011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1053839171 + ... + 1053953243.

It is an arithmetic number, because the mean of its divisors is an integer number (2360794511460).

Almost surely, 2^{120221102021111} is an apocalyptic number.

120221102021111 is a deficient number, since it is larger than the sum of its proper divisors (30869746712329).

120221102021111 is a wasteful number, since it uses less digits than its factorization.

120221102021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115036.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 120221102021111 its reverse (111120201122021), we get a palindrome (231341303143132).

The spelling of 120221102021111 in words is "one hundred twenty trillion, two hundred twenty-one billion, one hundred two million, twenty-one thousand, one hundred eleven".