1400220330421 has 4 divisors (see below), whose sum is σ = 1527513087744. Its totient is φ = 1272927573100.

The previous prime is 1400220330419. The next prime is 1400220330427. The reversal of 1400220330421 is 1240330220041.

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 1400220330421 - 2¹ = 1400220330419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1400220330392 and 1400220330401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400220330427) 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, 63646378645 + ... + 63646378666.

It is an arithmetic number, because the mean of its divisors is an integer number (381878271936).

Almost surely, 2^{1400220330421} is an apocalyptic number.

1400220330421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1400220330421 is a deficient number, since it is larger than the sum of its proper divisors (127292757323).

1400220330421 is a wasteful number, since it uses less digits than its factorization.

1400220330421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127292757322.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 1400220330421 its reverse (1240330220041), we get a palindrome (2640550550462).

The spelling of 1400220330421 in words is "one trillion, four hundred billion, two hundred twenty million, three hundred thirty thousand, four hundred twenty-one".