20220222121 has 16 divisors (see below), whose sum is σ = 22155840000. Its totient is φ = 18300971520.

The previous prime is 20220222101. The next prime is 20220222133. The reversal of 20220222121 is 12122202202.

It is a cyclic number.

It is not a de Polignac number, because 20220222121 - 2¹³ = 20220213929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20220222095 and 20220222104.

It is not an unprimeable number, because it can be changed into a prime (20220222101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4023016 + ... + 4028038.

It is an arithmetic number, because the mean of its divisors is an integer number (1384740000).

Almost surely, 2^20220222121 is an apocalyptic number.

It is an amenable number.

20220222121 is a deficient number, since it is larger than the sum of its proper divisors (1935617879).

20220222121 is a wasteful number, since it uses less digits than its factorization.

20220222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6576.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20220222121 its reverse (12122202202), we get a palindrome (32342424323).

The spelling of 20220222121 in words is "twenty billion, two hundred twenty million, two hundred twenty-two thousand, one hundred twenty-one".