10221001111212 has 24 divisors (see below), whose sum is σ = 24493570231536. Its totient is φ = 3314919279168.

The previous prime is 10221001111207. The next prime is 10221001111253. The reversal of 10221001111212 is 21211110012201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10221001111191 and 10221001111200.

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 7 ways as a sum of consecutive naturals, for example, 11510135943 + ... + 11510136830.

It is an arithmetic number, because the mean of its divisors is an integer number (1020565426314).

Almost surely, 2^{10221001111212} is an apocalyptic number.

10221001111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10221001111212 is an abundant number, since it is smaller than the sum of its proper divisors (14272569120324).

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

10221001111212 is a wasteful number, since it uses less digits than its factorization.

10221001111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23020272817 (or 23020272815 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10221001111212 its reverse (21211110012201), we get a palindrome (31432111123413).

It can be divided in two parts, 1022100 and 1111212, that added together give a palindrome (2133312).

The spelling of 10221001111212 in words is "ten trillion, two hundred twenty-one billion, one million, one hundred eleven thousand, two hundred twelve".