10120222221221 has 16 divisors (see below), whose sum is σ = 11618183808000. Its totient is φ = 8635316871168.

The previous prime is 10120222221217. The next prime is 10120222221223. The reversal of 10120222221221 is 12212222202101.

It is a cyclic number.

It is not a de Polignac number, because 10120222221221 - 2² = 10120222221217 is a prime.

It is a super-2 number, since 2×10120222221221² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10120222221193 and 10120222221202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120222221223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66030245 + ... + 66183333.

It is an arithmetic number, because the mean of its divisors is an integer number (726136488000).

Almost surely, 2^{10120222221221} is an apocalyptic number.

It is an amenable number.

10120222221221 is a deficient number, since it is larger than the sum of its proper divisors (1497961586779).

10120222221221 is a wasteful number, since it uses less digits than its factorization.

10120222221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195668.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 10120222221221 its reverse (12212222202101), we get a palindrome (22332444423322).

The spelling of 10120222221221 in words is "ten trillion, one hundred twenty billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty-one".