1211224210142 has 8 divisors (see below), whose sum is σ = 1818412065696. Its totient is φ = 605086854912.

The previous prime is 1211224210129. The next prime is 1211224210151. The reversal of 1211224210142 is 2410124221121.

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

It is a super-2 number, since 2×1211224210142² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262622198 + ... + 262626809.

It is an arithmetic number, because the mean of its divisors is an integer number (227301508212).

Almost surely, 2^{1211224210142} is an apocalyptic number.

1211224210142 is a deficient number, since it is larger than the sum of its proper divisors (607187855554).

1211224210142 is a wasteful number, since it uses less digits than its factorization.

1211224210142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525250162.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 1211224210142 its reverse (2410124221121), we get a palindrome (3621348431263).

The spelling of 1211224210142 in words is "one trillion, two hundred eleven billion, two hundred twenty-four million, two hundred ten thousand, one hundred forty-two".