120001231021021 has 32 divisors (see below), whose sum is σ = 149923876257792. Its totient is φ = 93667349825280.

The previous prime is 120001231021013. The next prime is 120001231021031. The reversal of 120001231021021 is 120120132100021.

It is not a de Polignac number, because 120001231021021 - 2³ = 120001231021013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120001231020986 and 120001231021004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001231021031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16683240 + ... + 22766926.

It is an arithmetic number, because the mean of its divisors is an integer number (4685121133056).

Almost surely, 2^{120001231021021} is an apocalyptic number.

It is an amenable number.

120001231021021 is a deficient number, since it is larger than the sum of its proper divisors (29922645236771).

120001231021021 is a wasteful number, since it uses less digits than its factorization.

120001231021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6089089.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 120001231021021 its reverse (120120132100021), we get a palindrome (240121363121042).

The spelling of 120001231021021 in words is "one hundred twenty trillion, one billion, two hundred thirty-one million, twenty-one thousand, twenty-one".