1020100221222 has 128 divisors (see below), whose sum is σ = 2266757498880. Its totient is φ = 304730849280.

The previous prime is 1020100221199. The next prime is 1020100221233. The reversal of 1020100221222 is 2221220010201.

It is a super-2 number, since 2×1020100221222² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27417472 + ... + 27454652.

It is an arithmetic number, because the mean of its divisors is an integer number (17709042960).

Almost surely, 2^{1020100221222} is an apocalyptic number.

1020100221222 is an abundant number, since it is smaller than the sum of its proper divisors (1246657277658).

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

1020100221222 is a wasteful number, since it uses less digits than its factorization.

1020100221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37406.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1020100221222 its reverse (2221220010201), we get a palindrome (3241320231423).

The spelling of 1020100221222 in words is "one trillion, twenty billion, one hundred million, two hundred twenty-one thousand, two hundred twenty-two".