10210112221221 has 24 divisors (see below), whose sum is σ = 16116070055904. Its totient is φ = 6177405118560.

The previous prime is 10210112221201. The next prime is 10210112221247. The reversal of 10210112221221 is 12212221101201.

10210112221221 is a `hidden beast` number, since 1 + 0 + 210 + 1 + 12 + 221 + 221 = 666.

It is not a de Polignac number, because 10210112221221 - 2⁴² = 5812065710117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10210112221194 and 10210112221203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210112221201) 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, 87788946 + ... + 87905171.

It is an arithmetic number, because the mean of its divisors is an integer number (671502918996).

Almost surely, 2^{10210112221221} is an apocalyptic number.

10210112221221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10210112221221 is a deficient number, since it is larger than the sum of its proper divisors (5905957834683).

10210112221221 is a wasteful number, since it uses less digits than its factorization.

10210112221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175694721 (or 175694718 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 10210112221221 its reverse (12212221101201), we get a palindrome (22422333322422).

The spelling of 10210112221221 in words is "ten trillion, two hundred ten billion, one hundred twelve million, two hundred twenty-one thousand, two hundred twenty-one".