210022121101 has 8 divisors (see below), whose sum is σ = 226229736600. Its totient is φ = 193821943872.

The previous prime is 210022121069. The next prime is 210022121137. The reversal of 210022121101 is 101121220012.

It can be written as a sum of positive squares in 4 ways, for example, as 13139119876 + 196883001225 = 114626^2 + 443715^2 .

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 210022121101 - 2⁵ = 210022121069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210022101101) 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, 1800850 + ... + 1913923.

It is an arithmetic number, because the mean of its divisors is an integer number (28278717075).

Almost surely, 2^210022121101 is an apocalyptic number.

It is an amenable number.

210022121101 is a deficient number, since it is larger than the sum of its proper divisors (16207615499).

210022121101 is a wasteful number, since it uses less digits than its factorization.

210022121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719135.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210022121101 its reverse (101121220012), we get a palindrome (311143341113).

The spelling of 210022121101 in words is "two hundred ten billion, twenty-two million, one hundred twenty-one thousand, one hundred one".