20012021122 has 8 divisors (see below), whose sum is σ = 30160297872. Its totient is φ = 9958588500.

The previous prime is 20012021093. The next prime is 20012021129. The reversal of 20012021122 is 22112021002.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (20012021129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23710504 + ... + 23711347.

It is an arithmetic number, because the mean of its divisors is an integer number (3770037234).

Almost surely, 2^20012021122 is an apocalyptic number.

20012021122 is a deficient number, since it is larger than the sum of its proper divisors (10148276750).

20012021122 is a wasteful number, since it uses less digits than its factorization.

20012021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47422064.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20012021122 its reverse (22112021002), we get a palindrome (42124042124).

The spelling of 20012021122 in words is "twenty billion, twelve million, twenty-one thousand, one hundred twenty-two".