210002021101 has 4 divisors (see below), whose sum is σ = 210053864704. Its totient is φ = 209950177500.

The previous prime is 210002021057. The next prime is 210002021113. The reversal of 210002021101 is 101120200012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210002021101 - 2¹⁵ = 210001988333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210002021191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25915725 + ... + 25923826.

It is an arithmetic number, because the mean of its divisors is an integer number (52513466176).

Almost surely, 2^210002021101 is an apocalyptic number.

It is an amenable number.

210002021101 is a deficient number, since it is larger than the sum of its proper divisors (51843603).

210002021101 is an equidigital number, since it uses as much as digits as its factorization.

210002021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51843602.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 210002021101 its reverse (101120200012), we get a palindrome (311122221113).

The spelling of 210002021101 in words is "two hundred ten billion, two million, twenty-one thousand, one hundred one".