1211404142001 has 8 divisors (see below), whose sum is σ = 1618935791200. Its totient is φ = 805737627072.

The previous prime is 1211404141991. The next prime is 1211404142029. The reversal of 1211404142001 is 1002414041121.

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

It is not a de Polignac number, because 1211404142001 - 2³⁰ = 1210330400177 is a prime.

It is a super-3 number, since 3×1211404142001³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211404142071) 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, 466282051 + ... + 466284648.

It is an arithmetic number, because the mean of its divisors is an integer number (202366973900).

Almost surely, 2^{1211404142001} is an apocalyptic number.

It is an amenable number.

1211404142001 is a deficient number, since it is larger than the sum of its proper divisors (407531649199).

1211404142001 is an equidigital number, since it uses as much as digits as its factorization.

1211404142001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932567135.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 1211404142001 its reverse (1002414041121), we get a palindrome (2213818183122).

The spelling of 1211404142001 in words is "one trillion, two hundred eleven billion, four hundred four million, one hundred forty-two thousand, one".