100221002021222 has 4 divisors (see below), whose sum is σ = 150331503031836. Its totient is φ = 50110501010610.

The previous prime is 100221002021149. The next prime is 100221002021269. The reversal of 100221002021222 is 222120200122001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×100221002021222² (a number of 29 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 100221002021222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25055250505304 + ... + 25055250505307.

It is an arithmetic number, because the mean of its divisors is an integer number (37582875757959).

Almost surely, 2^{100221002021222} is an apocalyptic number.

100221002021222 is a deficient number, since it is larger than the sum of its proper divisors (50110501010614).

100221002021222 is an equidigital number, since it uses as much as digits as its factorization.

100221002021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50110501010613.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 100221002021222 its reverse (222120200122001), we get a palindrome (322341202143223).

The spelling of 100221002021222 in words is "one hundred trillion, two hundred twenty-one billion, two million, twenty-one thousand, two hundred twenty-two".