1022020092 has 66 divisors (see below), whose sum is σ = 2683407608. Its totient is φ = 340594632.

The previous prime is 1022020037. The next prime is 1022020099. The reversal of 1022020092 is 2900202201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022020099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 21 ways as a sum of consecutive naturals, for example, 234033 + ... + 238359.

Almost surely, 2^1022020092 is an apocalyptic number.

1022020092 is a gapful number since it is divisible by the number (12) 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 1022020092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1341703804).

1022020092 is an abundant number, since it is smaller than the sum of its proper divisors (1661387516).

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

1022020092 is an frugal number, since it uses more digits than its factorization.

1022020092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4361 (or 4332 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1022020092 is about 31969.0489692765. The cubic root of 1022020092 is about 1007.2868041811.

Adding to 1022020092 its reverse (2900202201), we get a palindrome (3922222293).

The spelling of 1022020092 in words is "one billion, twenty-two million, twenty thousand, ninety-two".