20122002221020 has 24 divisors (see below), whose sum is σ = 48292805330784. Its totient is φ = 6898972190016.

The previous prime is 20122002221003. The next prime is 20122002221021. The reversal of 20122002221020 is 2012220022102.

It is a junction number, because it is equal to n+sod(n) for n = 20122002220985 and 20122002221003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122002221021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71864293507 + ... + 71864293786.

It is an arithmetic number, because the mean of its divisors is an integer number (2012200222116).

Almost surely, 2^{20122002221020} is an apocalyptic number.

20122002221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122002221020 is an abundant number, since it is smaller than the sum of its proper divisors (28170803109764).

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

20122002221020 is a wasteful number, since it uses less digits than its factorization.

20122002221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143728587309 (or 143728587307 counting only the distinct ones).

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

Adding to 20122002221020 its reverse (2012220022102), we get a palindrome (22134222243122).

The spelling of 20122002221020 in words is "twenty trillion, one hundred twenty-two billion, two million, two hundred twenty-one thousand, twenty".