120111201022021 has 12 divisors (see below), whose sum is σ = 132367763437056. Its totient is φ = 108906904278920.

The previous prime is 120111201022019. The next prime is 120111201022031. The reversal of 120111201022021 is 120220102111021.

It is not a de Polignac number, because 120111201022021 - 2¹ = 120111201022019 is a prime.

It is a super-2 number, since 2×120111201022021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120111201021986 and 120111201022004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120111201022031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1295847331 + ... + 1295940016.

It is an arithmetic number, because the mean of its divisors is an integer number (11030646953088).

Almost surely, 2^{120111201022021} is an apocalyptic number.

120111201022021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120111201022021 is a deficient number, since it is larger than the sum of its proper divisors (12256562415035).

120111201022021 is a wasteful number, since it uses less digits than its factorization.

120111201022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591787752 (or 2591787741 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 120111201022021 its reverse (120220102111021), we get a palindrome (240331303133042).

The spelling of 120111201022021 in words is "one hundred twenty trillion, one hundred eleven billion, two hundred one million, twenty-two thousand, twenty-one".