1401220001121 has 16 divisors (see below), whose sum is σ = 1879775184960. Its totient is φ = 928411545600.

The previous prime is 1401220001047. The next prime is 1401220001131. The reversal of 1401220001121 is 1211000221041.

It is not a de Polignac number, because 1401220001121 - 2²² = 1401215806817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1401220001121.

It is not an unprimeable number, because it can be changed into a prime (1401220001131) 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, 242721 + ... + 1691553.

It is an arithmetic number, because the mean of its divisors is an integer number (117485949060).

Almost surely, 2^{1401220001121} is an apocalyptic number.

It is an amenable number.

1401220001121 is a deficient number, since it is larger than the sum of its proper divisors (478555183839).

1401220001121 is a wasteful number, since it uses less digits than its factorization.

1401220001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450816.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1401220001121 its reverse (1211000221041), we get a palindrome (2612220222162).

The spelling of 1401220001121 in words is "one trillion, four hundred one billion, two hundred twenty million, one thousand, one hundred twenty-one".