20451210562222 has 32 divisors (see below), whose sum is σ = 34883876016000. Its totient is φ = 8906937967200.

The previous prime is 20451210562217. The next prime is 20451210562231. The reversal of 20451210562222 is 22226501215402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122264472 + ... + 122431627.

It is an arithmetic number, because the mean of its divisors is an integer number (1090121125500).

Almost surely, 2^{20451210562222} is an apocalyptic number.

20451210562222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20451210562222 is a deficient number, since it is larger than the sum of its proper divisors (14432665453778).

20451210562222 is a wasteful number, since it uses less digits than its factorization.

20451210562222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244696272.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 20451210562222 its reverse (22226501215402), we get a palindrome (42677711777624).

The spelling of 20451210562222 in words is "twenty trillion, four hundred fifty-one billion, two hundred ten million, five hundred sixty-two thousand, two hundred twenty-two".