221221120101022 has 16 divisors (see below), whose sum is σ = 351622086108480. Its totient is φ = 104023791226368.

The previous prime is 221221120101013. The next prime is 221221120101043. The reversal of 221221120101022 is 220101021122122.

221221120101022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 2508245622 + ... + 2508333817.

It is an arithmetic number, because the mean of its divisors is an integer number (21976380381780).

Almost surely, 2^{221221120101022} is an apocalyptic number.

221221120101022 is a deficient number, since it is larger than the sum of its proper divisors (130400966007458).

221221120101022 is a wasteful number, since it uses less digits than its factorization.

221221120101022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016580755.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221221120101022 its reverse (220101021122122), we get a palindrome (441322141223144).

The spelling of 221221120101022 in words is "two hundred twenty-one trillion, two hundred twenty-one billion, one hundred twenty million, one hundred one thousand, twenty-two".