10212221201022 has 72 divisors (see below), whose sum is σ = 22808152969056. Its totient is φ = 3302240949504.

The previous prime is 10212221200997. The next prime is 10212221201057. The reversal of 10212221201022 is 22010212221201.

It is a happy number.

10212221201022 is a `hidden beast` number, since 10 + 212 + 221 + 201 + 0 + 22 = 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 = 10212221200986 and 10212221201004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7689483 + ... + 8919225.

It is an arithmetic number, because the mean of its divisors is an integer number (316779902348).

Almost surely, 2^{10212221201022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10212221201022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11404076484528).

10212221201022 is an abundant number, since it is smaller than the sum of its proper divisors (12595931768034).

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

10212221201022 is a wasteful number, since it uses less digits than its factorization.

10212221201022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230162 (or 1230122 counting only the distinct ones).

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

Adding to 10212221201022 its reverse (22010212221201), we get a palindrome (32222433422223).

The spelling of 10212221201022 in words is "ten trillion, two hundred twelve billion, two hundred twenty-one million, two hundred one thousand, twenty-two".