210120021121201 has 8 divisors (see below), whose sum is σ = 210245338244480. Its totient is φ = 209994705425232.

The previous prime is 210120021121189. The next prime is 210120021121211. The reversal of 210120021121201 is 102121120021012.

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 210120021121201 - 2¹¹ = 210120021119153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210120021121211) 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, 515956606 + ... + 516363688.

It is an arithmetic number, because the mean of its divisors is an integer number (26280667280560).

Almost surely, 2^{210120021121201} is an apocalyptic number.

It is an amenable number.

210120021121201 is a deficient number, since it is larger than the sum of its proper divisors (125317123279).

210120021121201 is a wasteful number, since it uses less digits than its factorization.

210120021121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713655.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210120021121201 its reverse (102121120021012), we get a palindrome (312241141142213).

The spelling of 210120021121201 in words is "two hundred ten trillion, one hundred twenty billion, twenty-one million, one hundred twenty-one thousand, two hundred one".