120420202024021 has 32 divisors (see below), whose sum is σ = 125595217440000. Its totient is φ = 115315819465728.

The previous prime is 120420202024013. The next prime is 120420202024093.

120420202024021 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 120420202024021 - 2³ = 120420202024013 is a prime.

It is a super-2 number, since 2×120420202024021² (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 = 120420202023983 and 120420202024001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120420202024121) 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 31 ways as a sum of consecutive naturals, for example, 8680177741 + ... + 8680191613.

It is an arithmetic number, because the mean of its divisors is an integer number (3924850545000).

Almost surely, 2^{120420202024021} is an apocalyptic number.

It is an amenable number.

120420202024021 is a deficient number, since it is larger than the sum of its proper divisors (5175015415979).

120420202024021 is a wasteful number, since it uses less digits than its factorization.

120420202024021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16893.

The product of its (nonzero) digits is 1024, while the sum is 22.

It can be divided in two parts, 12042020 and 2024021, that added together give a palindrome (14066041).

The spelling of 120420202024021 in words is "one hundred twenty trillion, four hundred twenty billion, two hundred two million, twenty-four thousand, twenty-one".