1020022222021 has 16 divisors (see below), whose sum is σ = 1151177904576. Its totient is φ = 895718800000.

The previous prime is 1020022221997. The next prime is 1020022222039. The reversal of 1020022222021 is 1202222200201.

It is not a de Polignac number, because 1020022222021 - 2¹¹ = 1020022219973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020022221986 and 1020022222004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020022222061) 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, 11150935 + ... + 11242036.

It is an arithmetic number, because the mean of its divisors is an integer number (71948619036).

Almost surely, 2^{1020022222021} is an apocalyptic number.

1020022222021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1020022222021 is a deficient number, since it is larger than the sum of its proper divisors (131155682555).

1020022222021 is a wasteful number, since it uses less digits than its factorization.

1020022222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22393124.

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

Adding to 1020022222021 its reverse (1202222200201), we get a palindrome (2222244422222).

The spelling of 1020022222021 in words is "one trillion, twenty billion, twenty-two million, two hundred twenty-two thousand, twenty-one".