221022101121222 has 16 divisors (see below), whose sum is σ = 442079254665792. Its totient is φ = 73668191636520.

The previous prime is 221022101121221. The next prime is 221022101121251. The reversal of 221022101121222 is 222121101220122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221022101121221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1460435668 + ... + 1460586999.

It is an arithmetic number, because the mean of its divisors is an integer number (27629953416612).

Almost surely, 2^{221022101121222} is an apocalyptic number.

221022101121222 is an abundant number, since it is smaller than the sum of its proper divisors (221057153544570).

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

221022101121222 is a wasteful number, since it uses less digits than its factorization.

221022101121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921035283.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 221022101121222 its reverse (222121101220122), we get a palindrome (443143202341344).

The spelling of 221022101121222 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred one million, one hundred twenty-one thousand, two hundred twenty-two".