20015245222 has 32 divisors (see below), whose sum is σ = 36468444672. Its totient is φ = 8042653824.

The previous prime is 20015245213. The next prime is 20015245223. The reversal of 20015245222 is 22254251002.

It is a super-2 number, since 2×20015245222² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20015245223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97288 + ... + 222475.

It is an arithmetic number, because the mean of its divisors is an integer number (1139638896).

Almost surely, 2^20015245222 is an apocalyptic number.

20015245222 is a deficient number, since it is larger than the sum of its proper divisors (16453199450).

20015245222 is a wasteful number, since it uses less digits than its factorization.

20015245222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320052.

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 20015245222 its reverse (22254251002), we get a palindrome (42269496224).

The spelling of 20015245222 in words is "twenty billion, fifteen million, two hundred forty-five thousand, two hundred twenty-two".