1402221314421 has 6 divisors (see below), whose sum is σ = 2025430787510. Its totient is φ = 934814209608.

The previous prime is 1402221314353. The next prime is 1402221314467. The reversal of 1402221314421 is 1244131222041.

1402221314421 is a `hidden beast` number, since 1 + 4 + 0 + 2 + 2 + 213 + 1 + 442 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 925549823025 + 476671491396 = 962055^2 + 690414^2 .

It is not a de Polignac number, because 1402221314421 - 2¹⁰ = 1402221313397 is a prime.

It is a super-2 number, since 2×1402221314421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402221315421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77901184126 + ... + 77901184143.

Almost surely, 2^{1402221314421} is an apocalyptic number.

It is an amenable number.

1402221314421 is a deficient number, since it is larger than the sum of its proper divisors (623209473089).

1402221314421 is a wasteful number, since it uses less digits than its factorization.

1402221314421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155802368275 (or 155802368272 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 1402221314421 its reverse (1244131222041), we get a palindrome (2646352536462).

The spelling of 1402221314421 in words is "one trillion, four hundred two billion, two hundred twenty-one million, three hundred fourteen thousand, four hundred twenty-one".