1222002020111 has 4 divisors (see below), whose sum is σ = 1224260804424. Its totient is φ = 1219743235800.

The previous prime is 1222002020077. The next prime is 1222002020119. The reversal of 1222002020111 is 1110202002221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222002020111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222002020119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1129391345 + ... + 1129392426.

It is an arithmetic number, because the mean of its divisors is an integer number (306065201106).

Almost surely, 2^{1222002020111} is an apocalyptic number.

1222002020111 is a deficient number, since it is larger than the sum of its proper divisors (2258784313).

1222002020111 is an equidigital number, since it uses as much as digits as its factorization.

1222002020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258784312.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1222002020111 its reverse (1110202002221), we get a palindrome (2332204022332).

The spelling of 1222002020111 in words is "one trillion, two hundred twenty-two billion, two million, twenty thousand, one hundred eleven".