120221020111 has 16 divisors (see below), whose sum is σ = 123775011360. Its totient is φ = 116702328960.

The previous prime is 120221020099. The next prime is 120221020133. The reversal of 120221020111 is 111020122021.

It is a cyclic number.

It is not a de Polignac number, because 120221020111 - 2⁷ = 120221019983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120221020091 and 120221020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221020181) 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, 15351945 + ... + 15359773.

It is an arithmetic number, because the mean of its divisors is an integer number (7735938210).

Almost surely, 2^120221020111 is an apocalyptic number.

120221020111 is a deficient number, since it is larger than the sum of its proper divisors (3553991249).

120221020111 is a wasteful number, since it uses less digits than its factorization.

120221020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10026.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120221020111 its reverse (111020122021), we get a palindrome (231241142132).

The spelling of 120221020111 in words is "one hundred twenty billion, two hundred twenty-one million, twenty thousand, one hundred eleven".