1020022011988 has 48 divisors (see below), whose sum is σ = 2148994108800. Its totient is φ = 413839687680.

The previous prime is 1020022011961. The next prime is 1020022011989. The reversal of 1020022011988 is 8891102200201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020022011989) 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, 19668 + ... + 1428436.

It is an arithmetic number, because the mean of its divisors is an integer number (44770710600).

Almost surely, 2^{1020022011988} is an apocalyptic number.

It is an amenable number.

1020022011988 is an abundant number, since it is smaller than the sum of its proper divisors (1128972096812).

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

1020022011988 is a wasteful number, since it uses less digits than its factorization.

1020022011988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410160 (or 1410158 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 34.

The spelling of 1020022011988 in words is "one trillion, twenty billion, twenty-two million, eleven thousand, nine hundred eighty-eight".