21214035603445 has 8 divisors (see below), whose sum is σ = 26796676551840. Its totient is φ = 16078005930960.

The previous prime is 21214035603401. The next prime is 21214035603469. The reversal of 21214035603445 is 54430653041212.

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

It is not a de Polignac number, because 21214035603445 - 2³⁷ = 21076596649973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21214035603398 and 21214035603407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111652818871 + ... + 111652819060.

It is an arithmetic number, because the mean of its divisors is an integer number (3349584568980).

Almost surely, 2^{21214035603445} is an apocalyptic number.

It is an amenable number.

21214035603445 is a deficient number, since it is larger than the sum of its proper divisors (5582640948395).

21214035603445 is a wasteful number, since it uses less digits than its factorization.

21214035603445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223305637955.

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 21214035603445 its reverse (54430653041212), we get a palindrome (75644688644657).

The spelling of 21214035603445 in words is "twenty-one trillion, two hundred fourteen billion, thirty-five million, six hundred three thousand, four hundred forty-five".