20021122002 has 32 divisors (see below), whose sum is σ = 45768528000. Its totient is φ = 5719575168.

The previous prime is 20021122001. The next prime is 20021122013. The reversal of 20021122002 is 20022112002.

It is not an unprimeable number, because it can be changed into a prime (20021122001) 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, 350124 + ... + 403272.

It is an arithmetic number, because the mean of its divisors is an integer number (1430266500).

Almost surely, 2^20021122002 is an apocalyptic number.

20021122002 is an abundant number, since it is smaller than the sum of its proper divisors (25747405998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20021122002 is a wasteful number, since it uses less digits than its factorization.

20021122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62130.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20021122002 its reverse (20022112002), we get a palindrome (40043234004).

The spelling of 20021122002 in words is "twenty billion, twenty-one million, one hundred twenty-two thousand, two".