20022152225240 has 192 divisors, whose sum is σ = 51143059346400. Its totient is φ = 7045547857920.

The previous prime is 20022152225239. The next prime is 20022152225269. The reversal of 20022152225240 is 4252225122002.

It is a congruent number.

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, 18191351 + ... + 19260569.

Almost surely, 2^{20022152225240} is an apocalyptic number.

20022152225240 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 20022152225240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25571529673200).

20022152225240 is an abundant number, since it is smaller than the sum of its proper divisors (31120907121160).

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

20022152225240 is a wasteful number, since it uses less digits than its factorization.

20022152225240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069378 (or 1069363 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 20022152225240 its reverse (4252225122002), we get a palindrome (24274377347242).

The spelling of 20022152225240 in words is "twenty trillion, twenty-two billion, one hundred fifty-two million, two hundred twenty-five thousand, two hundred forty".