1022235421020 has 144 divisors (see below), whose sum is σ = 3147306931104. Its totient is φ = 247721126400.

The previous prime is 1022235420989. The next prime is 1022235421027. The reversal of 1022235421020 is 201245322201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022235421027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20281050 + ... + 20331390.

Almost surely, 2^{1022235421020} is an apocalyptic number.

1022235421020 is a gapful number since it is divisible by the number (10) 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 1022235421020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1573653465552).

1022235421020 is an abundant number, since it is smaller than the sum of its proper divisors (2125071510084).

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

1022235421020 is a wasteful number, since it uses less digits than its factorization.

1022235421020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53172 (or 53159 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The spelling of 1022235421020 in words is "one trillion, twenty-two billion, two hundred thirty-five million, four hundred twenty-one thousand, twenty".