20212443401 has 8 divisors (see below), whose sum is σ = 21201675264. Its totient is φ = 19232414080.

The previous prime is 20212443379. The next prime is 20212443463. The reversal of 20212443401 is 10434421202.

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 20212443401 - 2⁶ = 20212443337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (20212443491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2296136 + ... + 2304921.

It is an arithmetic number, because the mean of its divisors is an integer number (2650209408).

Almost surely, 2^20212443401 is an apocalyptic number.

It is an amenable number.

20212443401 is a deficient number, since it is larger than the sum of its proper divisors (989231863).

20212443401 is a wasteful number, since it uses less digits than its factorization.

20212443401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4601271.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20212443401 its reverse (10434421202), we get a palindrome (30646864603).

The spelling of 20212443401 in words is "twenty billion, two hundred twelve million, four hundred forty-three thousand, four hundred one".