210020112220021 has 8 divisors (see below), whose sum is σ = 213208251806304. Its totient is φ = 206854664019120.

The previous prime is 210020112219971. The next prime is 210020112220091. The reversal of 210020112220021 is 120022211020012.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 210020112220021 - 2¹⁷ = 210020112088949 is a prime.

It is a super-2 number, since 2×210020112220021² (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 = 210020112219977 and 210020112220004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210020112220091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5672827695 + ... + 5672864716.

It is an arithmetic number, because the mean of its divisors is an integer number (26651031475788).

Almost surely, 2^{210020112220021} is an apocalyptic number.

It is an amenable number.

210020112220021 is a deficient number, since it is larger than the sum of its proper divisors (3188139586283).

210020112220021 is a wasteful number, since it uses less digits than its factorization.

210020112220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11345692691.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210020112220021 its reverse (120022211020012), we get a palindrome (330042323240033).

The spelling of 210020112220021 in words is "two hundred ten trillion, twenty billion, one hundred twelve million, two hundred twenty thousand, twenty-one".