1222150143 has 4 divisors (see below), whose sum is σ = 1629533528. Its totient is φ = 814766760.

The previous prime is 1222150141. The next prime is 1222150147. The reversal of 1222150143 is 3410512221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3410512221 = 3 ⋅1136837407.

It is not a de Polignac number, because 1222150143 - 2¹ = 1222150141 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 (1222150141) 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, 203691688 + ... + 203691693.

It is an arithmetic number, because the mean of its divisors is an integer number (407383382).

Almost surely, 2^1222150143 is an apocalyptic number.

1222150143 is a deficient number, since it is larger than the sum of its proper divisors (407383385).

1222150143 is an equidigital number, since it uses as much as digits as its factorization.

1222150143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407383384.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1222150143 is about 34959.2640511782. The cubic root of 1222150143 is about 1069.1570917145.

Adding to 1222150143 its reverse (3410512221), we get a palindrome (4632662364).

The spelling of 1222150143 in words is "one billion, two hundred twenty-two million, one hundred fifty thousand, one hundred forty-three".