120210122021 has 4 divisors (see below), whose sum is σ = 131138314944. Its totient is φ = 109281929100.

The previous prime is 120210122017. The next prime is 120210122141. The reversal of 120210122021 is 120221012021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120210122021 - 2² = 120210122017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120210121987 and 120210122005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120210122321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5464096445 + ... + 5464096466.

It is an arithmetic number, because the mean of its divisors is an integer number (32784578736).

Almost surely, 2^120210122021 is an apocalyptic number.

120210122021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120210122021 is a deficient number, since it is larger than the sum of its proper divisors (10928192923).

120210122021 is a wasteful number, since it uses less digits than its factorization.

120210122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10928192922.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120210122021 its reverse (120221012021), we get a palindrome (240431134042).

Subtracting 120210122021 from its reverse (120221012021), we obtain a square (10890000 = 3300²).

The spelling of 120210122021 in words is "one hundred twenty billion, two hundred ten million, one hundred twenty-two thousand, twenty-one".