20022121005 has 32 divisors (see below), whose sum is σ = 32187196800. Its totient is φ = 10627974912.

The previous prime is 20022120973. The next prime is 20022121013. The reversal of 20022121005 is 50012122002.

It is not a de Polignac number, because 20022121005 - 2⁵ = 20022120973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3368326 + ... + 3374264.

It is an arithmetic number, because the mean of its divisors is an integer number (1005849900).

Almost surely, 2^20022121005 is an apocalyptic number.

It is an amenable number.

20022121005 is a deficient number, since it is larger than the sum of its proper divisors (12165075795).

20022121005 is a wasteful number, since it uses less digits than its factorization.

20022121005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6973.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 20022121005 its reverse (50012122002), we get a palindrome (70034243007).

The spelling of 20022121005 in words is "twenty billion, twenty-two million, one hundred twenty-one thousand, five".