1022123222021 has 8 divisors (see below), whose sum is σ = 1180634310144. Its totient is φ = 874543933120.

The previous prime is 1022123222011. The next prime is 1022123222119. The reversal of 1022123222021 is 1202223212201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1022123222021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022123221984 and 1022123222002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022123222011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2732949605 + ... + 2732949978.

It is an arithmetic number, because the mean of its divisors is an integer number (147579288768).

Almost surely, 2^{1022123222021} is an apocalyptic number.

1022123222021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1022123222021 is a deficient number, since it is larger than the sum of its proper divisors (158511088123).

1022123222021 is a wasteful number, since it uses less digits than its factorization.

1022123222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5465899611.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1022123222021 its reverse (1202223212201), we get a palindrome (2224346434222).

It can be divided in two parts, 102212 and 3222021, that added together give a palindrome (3324233).

The spelling of 1022123222021 in words is "one trillion, twenty-two billion, one hundred twenty-three million, two hundred twenty-two thousand, twenty-one".