1227401588842 has 32 divisors (see below), whose sum is σ = 2198432041344. Its totient is φ = 506551147200.

The previous prime is 1227401588821. The next prime is 1227401588849. The reversal of 1227401588842 is 2488851047221.

It is a self number, because there is not a number n which added to its sum of digits gives 1227401588842.

It is not an unprimeable number, because it can be changed into a prime (1227401588849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35159718 + ... + 35194609.

It is an arithmetic number, because the mean of its divisors is an integer number (68701001292).

Almost surely, 2^{1227401588842} is an apocalyptic number.

1227401588842 is a deficient number, since it is larger than the sum of its proper divisors (971030452502).

1227401588842 is a wasteful number, since it uses less digits than its factorization.

1227401588842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70354414.

The product of its (nonzero) digits is 2293760, while the sum is 52.

The spelling of 1227401588842 in words is "one trillion, two hundred twenty-seven billion, four hundred one million, five hundred eighty-eight thousand, eight hundred forty-two".