1111212100222 has 16 divisors (see below), whose sum is σ = 1904951567232. Its totient is φ = 476229622680.

The previous prime is 1111212100157. The next prime is 1111212100247. The reversal of 1111212100222 is 2220012121111.

It is a junction number, because it is equal to n+sod(n) for n = 1111212100196 and 1111212100205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1775397 + ... + 2318287.

It is an arithmetic number, because the mean of its divisors is an integer number (119059472952).

Almost surely, 2^{1111212100222} is an apocalyptic number.

1111212100222 is a deficient number, since it is larger than the sum of its proper divisors (793739467010).

1111212100222 is a wasteful number, since it uses less digits than its factorization.

1111212100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689103.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1111212100222 its reverse (2220012121111), we get a palindrome (3331224221333).

The spelling of 1111212100222 in words is "one trillion, one hundred eleven billion, two hundred twelve million, one hundred thousand, two hundred twenty-two".