21102412321033 has 16 divisors (see below), whose sum is σ = 22222416205440. Its totient is φ = 19999292252544.

The previous prime is 21102412320973. The next prime is 21102412321037. The reversal of 21102412321033 is 33012321420112.

It is a cyclic number.

It is not a de Polignac number, because 21102412321033 - 2¹³ = 21102412312841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21102412320989 and 21102412321007.

It is not an unprimeable number, because it can be changed into a prime (21102412321037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197104485 + ... + 197211517.

It is an arithmetic number, because the mean of its divisors is an integer number (1388901012840).

Almost surely, 2^{21102412321033} is an apocalyptic number.

21102412321033 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21102412321033 is a deficient number, since it is larger than the sum of its proper divisors (1120003884407).

21102412321033 is a wasteful number, since it uses less digits than its factorization.

21102412321033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185808.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21102412321033 its reverse (33012321420112), we get a palindrome (54114733741145).

The spelling of 21102412321033 in words is "twenty-one trillion, one hundred two billion, four hundred twelve million, three hundred twenty-one thousand, thirty-three".