221012221022202 has 8 divisors (see below), whose sum is σ = 442024442044416. Its totient is φ = 73670740340732.

The previous prime is 221012221022189. The next prime is 221012221022249. The reversal of 221012221022202 is 202220122210122.

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

221012221022202 is an admirable 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, 18417685085178 + ... + 18417685085189.

It is an arithmetic number, because the mean of its divisors is an integer number (55253055255552).

Almost surely, 2^{221012221022202} is an apocalyptic number.

221012221022202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221012221022202 is a wasteful number, since it uses less digits than its factorization.

221012221022202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36835370170372.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 221012221022202 its reverse (202220122210122), we get a palindrome (423232343232324).

The spelling of 221012221022202 in words is "two hundred twenty-one trillion, twelve billion, two hundred twenty-one million, twenty-two thousand, two hundred two".