402201120421 has 8 divisors (see below), whose sum is σ = 415264649984. Its totient is φ = 389143172160.

The previous prime is 402201120389. The next prime is 402201120427. The reversal of 402201120421 is 124021102204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402201120421 - 2⁵ = 402201120389 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 (402201120427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1248615 + ... + 1537348.

It is an arithmetic number, because the mean of its divisors is an integer number (51908081248).

Almost surely, 2^402201120421 is an apocalyptic number.

It is an amenable number.

402201120421 is a deficient number, since it is larger than the sum of its proper divisors (13063529563).

402201120421 is a wasteful number, since it uses less digits than its factorization.

402201120421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790651.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 402201120421 its reverse (124021102204), we get a palindrome (526222222625).

The spelling of 402201120421 in words is "four hundred two billion, two hundred one million, one hundred twenty thousand, four hundred twenty-one".