210120001122021 has 8 divisors (see below), whose sum is σ = 285446039260320. Its totient is φ = 137436981865872.

The previous prime is 210120001122007. The next prime is 210120001122023. The reversal of 210120001122021 is 120221100021012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210120001122021 - 2¹⁵ = 210120001089253 is a prime.

It is a super-2 number, since 2×210120001122021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210120001122023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660754720351 + ... + 660754720668.

It is an arithmetic number, because the mean of its divisors is an integer number (35680754907540).

Almost surely, 2^{210120001122021} is an apocalyptic number.

It is an amenable number.

210120001122021 is a deficient number, since it is larger than the sum of its proper divisors (75326038138299).

210120001122021 is a wasteful number, since it uses less digits than its factorization.

210120001122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321509441075.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210120001122021 its reverse (120221100021012), we get a palindrome (330341101143033).

The spelling of 210120001122021 in words is "two hundred ten trillion, one hundred twenty billion, one million, one hundred twenty-two thousand, twenty-one".