10210220122221 has 24 divisors (see below), whose sum is σ = 17595844203840. Its totient is φ = 5834411497656.

The previous prime is 10210220122217. The next prime is 10210220122243. The reversal of 10210220122221 is 12222102201201.

It is a happy number.

10210220122221 is a `hidden beast` number, since 1 + 0 + 210 + 220 + 12 + 2 + 221 = 666.

It is not a de Polignac number, because 10210220122221 - 2² = 10210220122217 is a prime.

It is a super-2 number, since 2×10210220122221² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10210220122194 and 10210220122203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210220121221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3858736441 + ... + 3858739086.

It is an arithmetic number, because the mean of its divisors is an integer number (733160175160).

Almost surely, 2^{10210220122221} is an apocalyptic number.

It is an amenable number.

10210220122221 is a deficient number, since it is larger than the sum of its proper divisors (7385624081619).

10210220122221 is an equidigital number, since it uses as much as digits as its factorization.

10210220122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7717475550 (or 7717475537 counting only the distinct ones).

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

Adding to 10210220122221 its reverse (12222102201201), we get a palindrome (22432322323422).

The spelling of 10210220122221 in words is "ten trillion, two hundred ten billion, two hundred twenty million, one hundred twenty-two thousand, two hundred twenty-one".