21222014513602 has 16 divisors (see below), whose sum is σ = 37554163932672. Its totient is φ = 8801757171360.

The previous prime is 21222014513543. The next prime is 21222014513671. The reversal of 21222014513602 is 20631541022212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 24449325043 + ... + 24449325910.

It is an arithmetic number, because the mean of its divisors is an integer number (2347135245792).

Almost surely, 2^{21222014513602} is an apocalyptic number.

21222014513602 is a deficient number, since it is larger than the sum of its proper divisors (16332149419070).

21222014513602 is a wasteful number, since it uses less digits than its factorization.

21222014513602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48898650993.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 21222014513602 its reverse (20631541022212), we get a palindrome (41853555535814).

The spelling of 21222014513602 in words is "twenty-one trillion, two hundred twenty-two billion, fourteen million, five hundred thirteen thousand, six hundred two".