21222302220032 has 18 divisors (see below), whose sum is σ = 42361704822528. Its totient is φ = 10611151109888.

The previous prime is 21222302220011. The next prime is 21222302220043. The reversal of 21222302220032 is 23002220322212.

It is a super-2 number, since 2×21222302220032² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41449808768 + ... + 41449809279.

It is an arithmetic number, because the mean of its divisors is an integer number (2353428045696).

Almost surely, 2^{21222302220032} is an apocalyptic number.

It is an amenable number.

21222302220032 is a deficient number, since it is larger than the sum of its proper divisors (21139402602496).

21222302220032 is an frugal number, since it uses more digits than its factorization.

21222302220032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82899618063 (or 82899618049 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 21222302220032 its reverse (23002220322212), we get a palindrome (44224522542244).

The spelling of 21222302220032 in words is "twenty-one trillion, two hundred twenty-two billion, three hundred two million, two hundred twenty thousand, thirty-two".