210220222220121 has 8 divisors (see below), whose sum is σ = 296781490193184. Its totient is φ = 131902884530240.

The previous prime is 210220222220117. The next prime is 210220222220137. The reversal of 210220222220121 is 121022222022012.

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

It is a cyclic number.

It is not a de Polignac number, because 210220222220121 - 2² = 210220222220117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210220222220171) 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, 2060982570735 + ... + 2060982570836.

It is an arithmetic number, because the mean of its divisors is an integer number (37097686274148).

Almost surely, 2^{210220222220121} is an apocalyptic number.

It is an amenable number.

210220222220121 is a deficient number, since it is larger than the sum of its proper divisors (86561267973063).

210220222220121 is a wasteful number, since it uses less digits than its factorization.

210220222220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4121965141591.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 210220222220121 its reverse (121022222022012), we get a palindrome (331242444242133).

The spelling of 210220222220121 in words is "two hundred ten trillion, two hundred twenty billion, two hundred twenty-two million, two hundred twenty thousand, one hundred twenty-one".