1222100220111 has 8 divisors (see below), whose sum is σ = 1629495549744. Its totient is φ = 814719185280.

The previous prime is 1222100220109. The next prime is 1222100220113. The reversal of 1222100220111 is 1110220012221.

It is an interprime number because it is at equal distance from previous prime (1222100220109) and next prime (1222100220113).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1222100220111 - 2¹ = 1222100220109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222100220113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3372600 + ... + 3717341.

It is an arithmetic number, because the mean of its divisors is an integer number (203686943718).

Almost surely, 2^{1222100220111} is an apocalyptic number.

1222100220111 is a deficient number, since it is larger than the sum of its proper divisors (407395329633).

1222100220111 is an equidigital number, since it uses as much as digits as its factorization.

1222100220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7147401.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1222100220111 its reverse (1110220012221), we get a palindrome (2332320232332).

The spelling of 1222100220111 in words is "one trillion, two hundred twenty-two billion, one hundred million, two hundred twenty thousand, one hundred eleven".