31022022022020 has 144 divisors (see below), whose sum is σ = 95670153790848. Its totient is φ = 8134943477760.

The previous prime is 31022022022003. The next prime is 31022022022049. The reversal of 31022022022020 is 2022022022013.

31022022022020 is a `hidden beast` number, since 3 + 1 + 0 + 220 + 220 + 220 + 2 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 31022022021984 and 31022022022002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4729585 + ... + 9187655.

It is an arithmetic number, because the mean of its divisors is an integer number (664376067992).

Almost surely, 2^{31022022022020} is an apocalyptic number.

31022022022020 is a gapful number since it is divisible by the number (30) 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 31022022022020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47835076895424).

31022022022020 is an abundant number, since it is smaller than the sum of its proper divisors (64648131768828).

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

31022022022020 is a wasteful number, since it uses less digits than its factorization.

31022022022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4458730 (or 4458725 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 31022022022020 its reverse (2022022022013), we get a palindrome (33044044044033).

The spelling of 31022022022020 in words is "thirty-one trillion, twenty-two billion, twenty-two million, twenty-two thousand, twenty".