20010012220122 has 16 divisors (see below), whose sum is σ = 40034561351040. Its totient is φ = 6667581254912.

The previous prime is 20010012220117. The next prime is 20010012220123. The reversal of 20010012220122 is 22102221001002.

It is not an unprimeable number, because it can be changed into a prime (20010012220123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605686722 + ... + 605719757.

It is an arithmetic number, because the mean of its divisors is an integer number (2502160084440).

Almost surely, 2^{20010012220122} is an apocalyptic number.

20010012220122 is an abundant number, since it is smaller than the sum of its proper divisors (20024549130918).

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

20010012220122 is a wasteful number, since it uses less digits than its factorization.

20010012220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211409237.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20010012220122 its reverse (22102221001002), we get a palindrome (42112233221124).

The spelling of 20010012220122 in words is "twenty trillion, ten billion, twelve million, two hundred twenty thousand, one hundred twenty-two".