20022010121 has 8 divisors (see below), whose sum is σ = 20182969344. Its totient is φ = 19861102800.

The previous prime is 20022010111. The next prime is 20022010159. The reversal of 20022010121 is 12101022002.

It is a happy number.

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 20022010121 - 2²² = 20017815817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20022010111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1249466 + ... + 1265388.

It is an arithmetic number, because the mean of its divisors is an integer number (2522871168).

Almost surely, 2^20022010121 is an apocalyptic number.

It is an amenable number.

20022010121 is a deficient number, since it is larger than the sum of its proper divisors (160959223).

20022010121 is a wasteful number, since it uses less digits than its factorization.

20022010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25951.

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

Adding to 20022010121 its reverse (12101022002), we get a palindrome (32123032123).

The spelling of 20022010121 in words is "twenty billion, twenty-two million, ten thousand, one hundred twenty-one".