20402200000000 has 1440 divisors, whose sum is σ = 67134340627200. Its totient is φ = 6013440000000.

The previous prime is 20402199999991. The next prime is 20402200000031. The reversal of 20402200000000 is 220402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 345799999971 + ... + 345800000029.

It is an arithmetic number, because the mean of its divisors is an integer number (46621069880).

Almost surely, 2^{20402200000000} is an apocalyptic number.

20402200000000 is a gapful number since it is divisible by the number (20) 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 20402200000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33567170313600).

20402200000000 is an abundant number, since it is smaller than the sum of its proper divisors (46732140627200).

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

20402200000000 is an frugal number, since it uses more digits than its factorization.

20402200000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

Adding to 20402200000000 its reverse (220402), we get a palindrome (20402200220402).

It can be divided in two parts, 20402 and 200000000, that multiplied together give a square (4080400000000 = 2020000²).

The spelling of 20402200000000 in words is "twenty trillion, four hundred two billion, two hundred million", and thus it is an aban number.