1402044214021 has 4 divisors (see below), whose sum is σ = 1529502778944. Its totient is φ = 1274585649100.

The previous prime is 1402044214019. The next prime is 1402044214031. The reversal of 1402044214021 is 1204124402041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1402044214021 - 2¹ = 1402044214019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402044214031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63729282445 + ... + 63729282466.

It is an arithmetic number, because the mean of its divisors is an integer number (382375694736).

Almost surely, 2^{1402044214021} is an apocalyptic number.

1402044214021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1402044214021 is a deficient number, since it is larger than the sum of its proper divisors (127458564923).

1402044214021 is a wasteful number, since it uses less digits than its factorization.

1402044214021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127458564922.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 1402044214021 its reverse (1204124402041), we get a palindrome (2606168616062).

The spelling of 1402044214021 in words is "one trillion, four hundred two billion, forty-four million, two hundred fourteen thousand, twenty-one".