10101220222122 has 64 divisors (see below), whose sum is σ = 22480971949440. Its totient is φ = 3362004050688.

The previous prime is 10101220222099. The next prime is 10101220222123. The reversal of 10101220222122 is 22122202210101.

It is a happy number.

10101220222122 is a `hidden beast` number, since 1 + 0 + 101 + 220 + 222 + 122 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 10101220222095 and 10101220222104.

It is not an unprimeable number, because it can be changed into a prime (10101220222123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125196418 + ... + 125277074.

It is an arithmetic number, because the mean of its divisors is an integer number (351265186710).

Almost surely, 2^{10101220222122} is an apocalyptic number.

10101220222122 is an abundant number, since it is smaller than the sum of its proper divisors (12379751727318).

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

10101220222122 is a wasteful number, since it uses less digits than its factorization.

10101220222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84132 (or 84126 counting only the distinct ones).

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

Adding to 10101220222122 its reverse (22122202210101), we get a palindrome (32223422432223).

The spelling of 10101220222122 in words is "ten trillion, one hundred one billion, two hundred twenty million, two hundred twenty-two thousand, one hundred twenty-two".