210202212202101 has 96 divisors (see below), whose sum is σ = 355904918553600. Its totient is φ = 119498765926176.

The previous prime is 210202212202061. The next prime is 210202212202121. The reversal of 210202212202101 is 101202212202012.

It is a happy number.

210202212202101 is a `hidden beast` number, since 2 + 10 + 2 + 0 + 221 + 220 + 210 + 1 = 666.

It is not a de Polignac number, because 210202212202101 - 2²³ = 210202203813493 is a prime.

It is a super-3 number, since 3×210202212202101³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210202212202121) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 474315246 + ... + 474758208.

It is an arithmetic number, because the mean of its divisors is an integer number (3707342901600).

Almost surely, 2^{210202212202101} is an apocalyptic number.

210202212202101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210202212202101 is a deficient number, since it is larger than the sum of its proper divisors (145702706351499).

210202212202101 is a wasteful number, since it uses less digits than its factorization.

210202212202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443780 (or 443763 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210202212202101 its reverse (101202212202012), we get a palindrome (311404424404113).

The spelling of 210202212202101 in words is "two hundred ten trillion, two hundred two billion, two hundred twelve million, two hundred two thousand, one hundred one".