1222022102020 has 144 divisors (see below), whose sum is σ = 2857432531968. Its totient is φ = 438069012480.

The previous prime is 1222022102011. The next prime is 1222022102027. The reversal of 1222022102020 is 202012202221.

It is a junction number, because it is equal to n+sod(n) for n = 1222022101985 and 1222022102003.

It is not an unprimeable number, because it can be changed into a prime (1222022102027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29625010 + ... + 29666230.

It is an arithmetic number, because the mean of its divisors is an integer number (19843281472).

Almost surely, 2^{1222022102020} is an apocalyptic number.

1222022102020 is a gapful number since it is divisible by the number (10) 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 1222022102020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1428716265984).

1222022102020 is an abundant number, since it is smaller than the sum of its proper divisors (1635410429948).

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

1222022102020 is a wasteful number, since it uses less digits than its factorization.

1222022102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41510 (or 41491 counting only the distinct ones).

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

Adding to 1222022102020 its reverse (202012202221), we get a palindrome (1424034304241).

It can be divided in two parts, 122202 and 2102020, that added together give a palindrome (2224222).

The spelling of 1222022102020 in words is "one trillion, two hundred twenty-two billion, twenty-two million, one hundred two thousand, twenty".