210120220102101 has 16 divisors (see below), whose sum is σ = 280234907962560. Its totient is φ = 140042842204160.

The previous prime is 210120220102099. The next prime is 210120220102139. The reversal of 210120220102101 is 101201022021012.

It is a cyclic number.

It is not a de Polignac number, because 210120220102101 - 2¹ = 210120220102099 is a prime.

It is a super-2 number, since 2×210120220102101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210120220106101) 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, 322696606 + ... + 323347088.

It is an arithmetic number, because the mean of its divisors is an integer number (17514681747660).

Almost surely, 2^{210120220102101} is an apocalyptic number.

It is an amenable number.

210120220102101 is a deficient number, since it is larger than the sum of its proper divisors (70114687860459).

210120220102101 is a wasteful number, since it uses less digits than its factorization.

210120220102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678996.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210120220102101 its reverse (101201022021012), we get a palindrome (311321242123113).

The spelling of 210120220102101 in words is "two hundred ten trillion, one hundred twenty billion, two hundred twenty million, one hundred two thousand, one hundred one".