21441554312002 has 16 divisors (see below), whose sum is σ = 37150072712352. Its totient is φ = 9172857459520.

The previous prime is 21441554311987. The next prime is 21441554312011. The reversal of 21441554312002 is 20021345514412.

It is a super-2 number, since 2×21441554312002² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 28665179188 + ... + 28665179935.

It is an arithmetic number, because the mean of its divisors is an integer number (2321879544522).

Almost surely, 2^{21441554312002} is an apocalyptic number.

21441554312002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21441554312002 is a deficient number, since it is larger than the sum of its proper divisors (15708518400350).

21441554312002 is a wasteful number, since it uses less digits than its factorization.

21441554312002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57330359153.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 21441554312002 its reverse (20021345514412), we get a palindrome (41462899826414).

The spelling of 21441554312002 in words is "twenty-one trillion, four hundred forty-one billion, five hundred fifty-four million, three hundred twelve thousand, two".