221101120210122 has 24 divisors (see below), whose sum is σ = 483703421564064. Its totient is φ = 72984835796904.

The previous prime is 221101120210121. The next prime is 221101120210151. The reversal of 221101120210122 is 221012021101122.

221101120210122 is a `hidden beast` number, since 2 + 211 + 0 + 1 + 120 + 210 + 122 = 666.

221101120210122 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 221101120210095 and 221101120210104.

It is not an unprimeable number, because it can be changed into a prime (221101120210121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59628131968 + ... + 59628135675.

It is an arithmetic number, because the mean of its divisors is an integer number (20154309231836).

Almost surely, 2^{221101120210122} is an apocalyptic number.

221101120210122 is an abundant number, since it is smaller than the sum of its proper divisors (262602301353942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221101120210122 is a wasteful number, since it uses less digits than its factorization.

221101120210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119256267754 (or 119256267751 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 221101120210122 its reverse (221012021101122), we get a palindrome (442113141311244).

The spelling of 221101120210122 in words is "two hundred twenty-one trillion, one hundred one billion, one hundred twenty million, two hundred ten thousand, one hundred twenty-two".