221121120021122 has 16 divisors (see below), whose sum is σ = 332805178930752. Its totient is φ = 110186623113840.

The previous prime is 221121120021101. The next prime is 221121120021181. The reversal of 221121120021122 is 221120021121122.

221121120021122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221121120021122² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221121120021094 and 221121120021103.

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, 139897529 + ... + 141469292.

It is an arithmetic number, because the mean of its divisors is an integer number (20800323683172).

Almost surely, 2^{221121120021122} is an apocalyptic number.

221121120021122 is a deficient number, since it is larger than the sum of its proper divisors (111684058909630).

221121120021122 is a wasteful number, since it uses less digits than its factorization.

221121120021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281368153.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 221121120021122 its reverse (221120021121122), we get a palindrome (442241141142244).

The spelling of 221121120021122 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, one hundred twenty million, twenty-one thousand, one hundred twenty-two".