20020122002000 has 80 divisors (see below), whose sum is σ = 48426550865472. Its totient is φ = 8005088361600.

The previous prime is 20020122001969. The next prime is 20020122002003. The reversal of 20020122002000 is 20022102002.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020122002003) 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, 3565079 + ... + 7262921.

Almost surely, 2^{20020122002000} is an apocalyptic number.

20020122002000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20020122002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24213275432736).

20020122002000 is an abundant number, since it is smaller than the sum of its proper divisors (28406428863472).

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

20020122002000 is a wasteful number, since it uses less digits than its factorization.

20020122002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700573 (or 3700557 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20020122002000 its reverse (20022102002), we get a palindrome (20040144104002).

The spelling of 20020122002000 in words is "twenty trillion, twenty billion, one hundred twenty-two million, two thousand".