10021121211222 has 48 divisors (see below), whose sum is σ = 23686522413840. Its totient is φ = 3036673152000.

The previous prime is 10021121211203. The next prime is 10021121211239. The reversal of 10021121211222 is 22211212112001.

10021121211222 is a `hidden beast` number, since 1 + 0 + 0 + 211 + 21 + 211 + 222 = 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 = 10021121211195 and 10021121211204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27220554 + ... + 27586242.

It is an arithmetic number, because the mean of its divisors is an integer number (493469216955).

Almost surely, 2^{10021121211222} is an apocalyptic number.

10021121211222 is an abundant number, since it is smaller than the sum of its proper divisors (13665401202618).

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

10021121211222 is a wasteful number, since it uses less digits than its factorization.

10021121211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504109 (or 504106 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 10021121211222 its reverse (22211212112001), we get a palindrome (32232333323223).

The spelling of 10021121211222 in words is "ten trillion, twenty-one billion, one hundred twenty-one million, two hundred eleven thousand, two hundred twenty-two".