20551352250122 has 64 divisors (see below), whose sum is σ = 32173204250880. Its totient is φ = 9837230893056.

The previous prime is 20551352250089. The next prime is 20551352250131. The reversal of 20551352250122 is 22105225315502.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2181899129 + ... + 2181908547.

It is an arithmetic number, because the mean of its divisors is an integer number (502706316420).

Almost surely, 2^{20551352250122} is an apocalyptic number.

20551352250122 is a deficient number, since it is larger than the sum of its proper divisors (11621852000758).

20551352250122 is a wasteful number, since it uses less digits than its factorization.

20551352250122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11295.

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 20551352250122 its reverse (22105225315502), we get a palindrome (42656577565624).

The spelling of 20551352250122 in words is "twenty trillion, five hundred fifty-one billion, three hundred fifty-two million, two hundred fifty thousand, one hundred twenty-two".