22120221221210 has 64 divisors (see below), whose sum is σ = 45703320056064. Its totient is φ = 7550976384000.

The previous prime is 22120221221179. The next prime is 22120221221239. The reversal of 22120221221210 is 1212212202122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23326940 + ... + 24256680.

It is an arithmetic number, because the mean of its divisors is an integer number (714114375876).

Almost surely, 2^{22120221221210} is an apocalyptic number.

22120221221210 is an abundant number, since it is smaller than the sum of its proper divisors (23583098834854).

22120221221210 is a wasteful number, since it uses less digits than its factorization.

22120221221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931239.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22120221221210 its reverse (1212212202122), we get a palindrome (23332433423332).

The spelling of 22120221221210 in words is "twenty-two trillion, one hundred twenty billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred ten".