21453200222455 has 8 divisors (see below), whose sum is σ = 25874519660352. Its totient is φ = 17075440582368.

The previous prime is 21453200222423. The next prime is 21453200222513. The reversal of 21453200222455 is 55422200235412.

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 21453200222455 - 2⁵ = 21453200222423 is a prime.

It is a super-2 number, since 2×21453200222455² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

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, 10889948367 + ... + 10889950336.

It is an arithmetic number, because the mean of its divisors is an integer number (3234314957544).

Almost surely, 2^{21453200222455} is an apocalyptic number.

21453200222455 is a deficient number, since it is larger than the sum of its proper divisors (4421319437897).

21453200222455 is a wasteful number, since it uses less digits than its factorization.

21453200222455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21779898905.

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 21453200222455 its reverse (55422200235412), we get a palindrome (76875400457867).

The spelling of 21453200222455 in words is "twenty-one trillion, four hundred fifty-three billion, two hundred million, two hundred twenty-two thousand, four hundred fifty-five".