21120221122202 has 8 divisors (see below), whose sum is σ = 33057737408736. Its totient is φ = 10100975319292.

The previous prime is 21120221122177. The next prime is 21120221122229. The reversal of 21120221122202 is 20222112202112.

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

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, 229567620848 + ... + 229567620939.

It is an arithmetic number, because the mean of its divisors is an integer number (4132217176092).

Almost surely, 2^{21120221122202} is an apocalyptic number.

21120221122202 is a deficient number, since it is larger than the sum of its proper divisors (11937516286534).

21120221122202 is a wasteful number, since it uses less digits than its factorization.

21120221122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459135241812.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 21120221122202 its reverse (20222112202112), we get a palindrome (41342333324314).

The spelling of 21120221122202 in words is "twenty-one trillion, one hundred twenty billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred two".