2130022200421 has 4 divisors (see below), whose sum is σ = 2130438795052. Its totient is φ = 2129605605792.

The previous prime is 2130022200409. The next prime is 2130022200433. The reversal of 2130022200421 is 1240022200312.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2130022200409) and next prime (2130022200433).

It can be written as a sum of positive squares in 2 ways, for example, as 825890176225 + 1304132024196 = 908785^2 + 1141986^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130022200421 - 2¹⁵ = 2130022167653 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 (2130022200451) 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, 208289646 + ... + 208299871.

It is an arithmetic number, because the mean of its divisors is an integer number (532609698763).

Almost surely, 2^{2130022200421} is an apocalyptic number.

It is an amenable number.

2130022200421 is a deficient number, since it is larger than the sum of its proper divisors (416594631).

2130022200421 is an equidigital number, since it uses as much as digits as its factorization.

2130022200421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416594630.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 2130022200421 its reverse (1240022200312), we get a palindrome (3370044400733).

The spelling of 2130022200421 in words is "two trillion, one hundred thirty billion, twenty-two million, two hundred thousand, four hundred twenty-one".