1022221201222 has 64 divisors (see below), whose sum is σ = 1675457784000. Its totient is φ = 464941306368.

The previous prime is 1022221201159. The next prime is 1022221201241. The reversal of 1022221201222 is 2221021222201.

It is a super-2 number, since 2×1022221201222² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1022221201222.

It is a congruent number.

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, 461915388 + ... + 461917600.

It is an arithmetic number, because the mean of its divisors is an integer number (26179027875).

Almost surely, 2^{1022221201222} is an apocalyptic number.

1022221201222 is a deficient number, since it is larger than the sum of its proper divisors (653236582778).

1022221201222 is a wasteful number, since it uses less digits than its factorization.

1022221201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1022221201222 its reverse (2221021222201), we get a palindrome (3243242423423).

The spelling of 1022221201222 in words is "one trillion, twenty-two billion, two hundred twenty-one million, two hundred one thousand, two hundred twenty-two".