20100221220022 has 8 divisors (see below), whose sum is σ = 30417148926216. Its totient is φ = 9961171577952.

The previous prime is 20100221220007. The next prime is 20100221220047. The reversal of 20100221220022 is 22002212200102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20100221219978 and 20100221220005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44469515748 + ... + 44469516199.

It is an arithmetic number, because the mean of its divisors is an integer number (3802143615777).

Almost surely, 2^{20100221220022} is an apocalyptic number.

20100221220022 is a deficient number, since it is larger than the sum of its proper divisors (10316927706194).

20100221220022 is a wasteful number, since it uses less digits than its factorization.

20100221220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88939032062.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20100221220022 its reverse (22002212200102), we get a palindrome (42102433420124).

The spelling of 20100221220022 in words is "twenty trillion, one hundred billion, two hundred twenty-one million, two hundred twenty thousand, twenty-two".