20220201989 has 8 divisors (see below), whose sum is σ = 21781213440. Its totient is φ = 18659992176.

The previous prime is 20220201977. The next prime is 20220202001. The reversal of 20220201989 is 98910202202.

It is an interprime number because it is at equal distance from previous prime (20220201977) and next prime (20220202001).

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

It is a cyclic number.

It is not a de Polignac number, because 20220201989 - 2⁸ = 20220201733 is a prime.

It is a super-2 number, since 2×20220201989² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220201689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147497 + ... + 249390.

It is an arithmetic number, because the mean of its divisors is an integer number (2722651680).

Almost surely, 2^20220201989 is an apocalyptic number.

It is an amenable number.

20220201989 is a deficient number, since it is larger than the sum of its proper divisors (1561011451).

20220201989 is a wasteful number, since it uses less digits than its factorization.

20220201989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400819.

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 20220201989 in words is "twenty billion, two hundred twenty million, two hundred one thousand, nine hundred eighty-nine".