20122222101210 has 32 divisors (see below), whose sum is σ = 53659258937280. Its totient is φ = 5365925893584.

The previous prime is 20122222101203. The next prime is 20122222101211. The reversal of 20122222101210 is 1210122222102.

It is a happy number.

20122222101210 is a `hidden beast` number, since 20 + 1 + 2 + 222 + 210 + 1 + 210 = 666.

It is a super-4 number, since 4×20122222101210⁴ (a number of 54 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20122222101211) 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, 37263373992 + ... + 37263374531.

It is an arithmetic number, because the mean of its divisors is an integer number (1676851841790).

Almost surely, 2^{20122222101210} is an apocalyptic number.

20122222101210 is an abundant number, since it is smaller than the sum of its proper divisors (33537036836070).

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

20122222101210 is a wasteful number, since it uses less digits than its factorization.

20122222101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74526748539 (or 74526748533 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20122222101210 its reverse (1210122222102), we get a palindrome (21332344323312).

The spelling of 20122222101210 in words is "twenty trillion, one hundred twenty-two billion, two hundred twenty-two million, one hundred one thousand, two hundred ten".