20225221502 has 8 divisors (see below), whose sum is σ = 30370846800. Its totient is φ = 10101605904.

The previous prime is 20225221483. The next prime is 20225221553. The reversal of 20225221502 is 20512252202.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5500127 + ... + 5503802.

It is an arithmetic number, because the mean of its divisors is an integer number (3796355850).

Almost surely, 2^20225221502 is an apocalyptic number.

20225221502 is a deficient number, since it is larger than the sum of its proper divisors (10145625298).

20225221502 is a wasteful number, since it uses less digits than its factorization.

20225221502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11004850.

The product of its (nonzero) digits is 1600, while the sum is 23.

Adding to 20225221502 its reverse (20512252202), we get a palindrome (40737473704).

The spelling of 20225221502 in words is "twenty billion, two hundred twenty-five million, two hundred twenty-one thousand, five hundred two".