1000221101212 has 48 divisors (see below), whose sum is σ = 1763029545984. Its totient is φ = 496515096000.

The previous prime is 1000221101183. The next prime is 1000221101221. The reversal of 1000221101212 is 2121011220001.

1000221101212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1000221101192 and 1000221101201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467173662 + ... + 467175802.

It is an arithmetic number, because the mean of its divisors is an integer number (36729782208).

Almost surely, 2^{1000221101212} is an apocalyptic number.

It is an amenable number.

1000221101212 is a deficient number, since it is larger than the sum of its proper divisors (762808444772).

1000221101212 is a wasteful number, since it uses less digits than its factorization.

1000221101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3730 (or 3728 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1000221101212 its reverse (2121011220001), we get a palindrome (3121232321213).

The spelling of 1000221101212 in words is "one trillion, two hundred twenty-one million, one hundred one thousand, two hundred twelve".