1220140342111 has 8 divisors (see below), whose sum is σ = 1270766647584. Its totient is φ = 1170442959840.

The previous prime is 1220140342087. The next prime is 1220140342121. The reversal of 1220140342111 is 1112430410221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220140342111 - 2²⁷ = 1220006124383 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 (1220140342121) 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, 232228120 + ... + 232233373.

It is an arithmetic number, because the mean of its divisors is an integer number (158845830948).

Almost surely, 2^{1220140342111} is an apocalyptic number.

1220140342111 is a deficient number, since it is larger than the sum of its proper divisors (50626305473).

1220140342111 is an equidigital number, since it uses as much as digits as its factorization.

1220140342111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464461601.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1220140342111 its reverse (1112430410221), we get a palindrome (2332570752332).

The spelling of 1220140342111 in words is "one trillion, two hundred twenty billion, one hundred forty million, three hundred forty-two thousand, one hundred eleven".