20010102201222 has 192 divisors, whose sum is σ = 51098004665856. Its totient is φ = 5186504494080.

The previous prime is 20010102201169. The next prime is 20010102201247. The reversal of 20010102201222 is 22210220101002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19281447 + ... + 20292717.

It is an arithmetic number, because the mean of its divisors is an integer number (266135440968).

Almost surely, 2^{20010102201222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20010102201222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25549002332928).

20010102201222 is an abundant number, since it is smaller than the sum of its proper divisors (31087902464634).

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

20010102201222 is a wasteful number, since it uses less digits than its factorization.

20010102201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011451 (or 1011444 counting only the distinct ones).

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

Adding to 20010102201222 its reverse (22210220101002), we get a palindrome (42220322302224).

The spelling of 20010102201222 in words is "twenty trillion, ten billion, one hundred two million, two hundred one thousand, two hundred twenty-two".