20200222121 has 8 divisors (see below), whose sum is σ = 21230139840. Its totient is φ = 19182941712.

The previous prime is 20200222117. The next prime is 20200222123. The reversal of 20200222121 is 12122200202.

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

It is not a de Polignac number, because 20200222121 - 2² = 20200222117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20200222096 and 20200222105.

It is not an unprimeable number, because it can be changed into a prime (20200222123) 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, 3156050 + ... + 3162443.

It is an arithmetic number, because the mean of its divisors is an integer number (2653767480).

Almost surely, 2^20200222121 is an apocalyptic number.

It is an amenable number.

20200222121 is a deficient number, since it is larger than the sum of its proper divisors (1029917719).

20200222121 is a wasteful number, since it uses less digits than its factorization.

20200222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6318655.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20200222121 its reverse (12122200202), we get a palindrome (32322422323).

The spelling of 20200222121 in words is "twenty billion, two hundred million, two hundred twenty-two thousand, one hundred twenty-one".