210020000220101 has 8 divisors (see below), whose sum is σ = 210045912443640. Its totient is φ = 209994089602752.

The previous prime is 210020000220089. The next prime is 210020000220113. The reversal of 210020000220101 is 101022000020012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (210020000220089) and next prime (210020000220113).

It can be written as a sum of positive squares in 4 ways, for example, as 47076051717601 + 162943948502500 = 6861199^2 + 12764950^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210020000220101 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 (210020000220001) 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, 272443115 + ... + 273212903.

It is an arithmetic number, because the mean of its divisors is an integer number (26255739055455).

Almost surely, 2^{210020000220101} is an apocalyptic number.

It is an amenable number.

210020000220101 is a deficient number, since it is larger than the sum of its proper divisors (25912223539).

210020000220101 is a wasteful number, since it uses less digits than its factorization.

210020000220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803095.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 210020000220101 its reverse (101022000020012), we get a palindrome (311042000240113).

The spelling of 210020000220101 in words is "two hundred ten trillion, twenty billion, two hundred twenty thousand, one hundred one".