20021022002122 has 16 divisors (see below), whose sum is σ = 30456646157952. Its totient is φ = 9868826373840.

The previous prime is 20021022002101. The next prime is 20021022002143. The reversal of 20021022002122 is 22120022012002.

It is an interprime number because it is at equal distance from previous prime (20021022002101) and next prime (20021022002143).

It is a junction number, because it is equal to n+sod(n) for n = 20021022002096 and 20021022002105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2902638 + ... + 6961849.

It is an arithmetic number, because the mean of its divisors is an integer number (1903540384872).

Almost surely, 2^{20021022002122} is an apocalyptic number.

20021022002122 is a deficient number, since it is larger than the sum of its proper divisors (10435624155830).

20021022002122 is a wasteful number, since it uses less digits than its factorization.

20021022002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9878853.

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

Adding to 20021022002122 its reverse (22120022012002), we get a palindrome (42141044014124).

The spelling of 20021022002122 in words is "twenty trillion, twenty-one billion, twenty-two million, two thousand, one hundred twenty-two".