20022101 has 8 divisors (see below), whose sum is σ = 22044000. Its totient is φ = 18033840.

The previous prime is 20022097. The next prime is 20022103. The reversal of 20022101 is 10122002.

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

It is not a de Polignac number, because 20022101 - 2² = 20022097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7151 + ... + 9548.

It is an arithmetic number, because the mean of its divisors is an integer number (2755500).

Almost surely, 2^20022101 is an apocalyptic number.

It is an amenable number.

20022101 is a deficient number, since it is larger than the sum of its proper divisors (2021899).

20022101 is a wasteful number, since it uses less digits than its factorization.

20022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16819.

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

The square root of 20022101 is about 4474.6062396595. The cubic root of 20022101 is about 271.5417104253.

Adding to 20022101 its reverse (10122002), we get a palindrome (30144103).

Subtracting from 20022101 its reverse (10122002), we obtain a palindrome (9900099).

The spelling of 20022101 in words is "twenty million, twenty-two thousand, one hundred one".