210100100222021 has 8 divisors (see below), whose sum is σ = 210813569418144. Its totient is φ = 209386820013840.

The previous prime is 210100100221987. The next prime is 210100100222069. The reversal of 210100100222021 is 120222001001012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210100100222021 is a prime.

It is a super-2 number, since 2×210100100222021² (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 = 210100100221987 and 210100100222005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210100100222921) 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, 45019610 + ... + 49466811.

It is an arithmetic number, because the mean of its divisors is an integer number (26351696177268).

Almost surely, 2^{210100100222021} is an apocalyptic number.

It is an amenable number.

210100100222021 is a deficient number, since it is larger than the sum of its proper divisors (713469196123).

210100100222021 is an equidigital number, since it uses as much as digits as its factorization.

210100100222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94493971.

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

Adding to 210100100222021 its reverse (120222001001012), we get a palindrome (330322101223033).

The spelling of 210100100222021 in words is "two hundred ten trillion, one hundred billion, one hundred million, two hundred twenty-two thousand, twenty-one".