1022222021020 has 24 divisors (see below), whose sum is σ = 2196588716784. Its totient is φ = 399379766016.

The previous prime is 1022222021017. The next prime is 1022222021033. The reversal of 1022222021020 is 201202222201.

It is a junction number, because it is equal to n+sod(n) for n = 1022222020985 and 1022222021003.

It is a congruent number.

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, 594314269 + ... + 594315988.

It is an arithmetic number, because the mean of its divisors is an integer number (91524529866).

Almost surely, 2^{1022222021020} is an apocalyptic number.

1022222021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022222021020 is an abundant number, since it is smaller than the sum of its proper divisors (1174366695764).

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

1022222021020 is a wasteful number, since it uses less digits than its factorization.

1022222021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188630309 (or 1188630307 counting only the distinct ones).

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

Adding to 1022222021020 its reverse (201202222201), we get a palindrome (1223424243221).

The spelling of 1022222021020 in words is "one trillion, twenty-two billion, two hundred twenty-two million, twenty-one thousand, twenty".