10220201221212 has 96 divisors (see below), whose sum is σ = 26540229119040. Its totient is φ = 3401155215360.

The previous prime is 10220201221123. The next prime is 10220201221309. The reversal of 10220201221212 is 21212210202201.

It is a happy number.

10220201221212 is a `hidden beast` number, since 1 + 0 + 220 + 201 + 221 + 21 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282612412 + ... + 282648572.

It is an arithmetic number, because the mean of its divisors is an integer number (276460719990).

Almost surely, 2^{10220201221212} is an apocalyptic number.

10220201221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10220201221212 is an abundant number, since it is smaller than the sum of its proper divisors (16320027897828).

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

10220201221212 is a wasteful number, since it uses less digits than its factorization.

10220201221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40388 (or 40380 counting only the distinct ones).

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

Adding to 10220201221212 its reverse (21212210202201), we get a palindrome (31432411423413).

The spelling of 10220201221212 in words is "ten trillion, two hundred twenty billion, two hundred one million, two hundred twenty-one thousand, two hundred twelve".