1401605138212 has 12 divisors (see below), whose sum is σ = 2461180355676. Its totient is φ = 698410750880.

The previous prime is 1401605138209. The next prime is 1401605138249. The reversal of 1401605138212 is 2128315061041.

It can be written as a sum of positive squares in 2 ways, for example, as 778178036736 + 623427101476 = 882144^2 + 789574^2 .

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, 597953239 + ... + 597955582.

It is an arithmetic number, because the mean of its divisors is an integer number (205098362973).

Almost surely, 2^{1401605138212} is an apocalyptic number.

It is an amenable number.

1401605138212 is a deficient number, since it is larger than the sum of its proper divisors (1059575217464).

1401605138212 is a wasteful number, since it uses less digits than its factorization.

1401605138212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195909118 (or 1195909116 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 1401605138212 in words is "one trillion, four hundred one billion, six hundred five million, one hundred thirty-eight thousand, two hundred twelve".