220120210202101 has 4 divisors (see below), whose sum is σ = 240131138402304. Its totient is φ = 200109282001900.

The previous prime is 220120210202077. The next prime is 220120210202107. The reversal of 220120210202101 is 101202012021022.

It is a happy number.

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 220120210202101 - 2¹¹ = 220120210200053 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 (220120210202107) 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, 10005464100085 + ... + 10005464100106.

It is an arithmetic number, because the mean of its divisors is an integer number (60032784600576).

Almost surely, 2^{220120210202101} is an apocalyptic number.

It is an amenable number.

220120210202101 is a deficient number, since it is larger than the sum of its proper divisors (20010928200203).

220120210202101 is a wasteful number, since it uses less digits than its factorization.

220120210202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20010928200202.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220120210202101 its reverse (101202012021022), we get a palindrome (321322222223123).

The spelling of 220120210202101 in words is "two hundred twenty trillion, one hundred twenty billion, two hundred ten million, two hundred two thousand, one hundred one".