20022102101 has 4 divisors (see below), whose sum is σ = 20133957600. Its totient is φ = 19910246604.

The previous prime is 20022102097. The next prime is 20022102157. The reversal of 20022102101 is 10120122002.

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 20022102101 - 2² = 20022102097 is a prime.

It is a super-2 number, since 2×20022102101² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022108101) 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, 55927481 + ... + 55927838.

It is an arithmetic number, because the mean of its divisors is an integer number (5033489400).

Almost surely, 2^20022102101 is an apocalyptic number.

It is an amenable number.

20022102101 is a deficient number, since it is larger than the sum of its proper divisors (111855499).

20022102101 is a wasteful number, since it uses less digits than its factorization.

20022102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111855498.

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

Adding to 20022102101 its reverse (10120122002), we get a palindrome (30142224103).

The spelling of 20022102101 in words is "twenty billion, twenty-two million, one hundred two thousand, one hundred one".