221012212111022 has 8 divisors (see below), whose sum is σ = 331570207107000. Its totient is φ = 110488809742024.

The previous prime is 221012212111003. The next prime is 221012212111049. The reversal of 221012212111022 is 220111212210122.

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

It is a super-2 number, since 2×221012212111022² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221012212110985 and 221012212111003.

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, 8648140772 + ... + 8648166327.

It is an arithmetic number, because the mean of its divisors is an integer number (41446275888375).

Almost surely, 2^{221012212111022} is an apocalyptic number.

221012212111022 is a deficient number, since it is larger than the sum of its proper divisors (110557994995978).

221012212111022 is a wasteful number, since it uses less digits than its factorization.

221012212111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17296313490.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 221012212111022 its reverse (220111212210122), we get a palindrome (441123424321144).

The spelling of 221012212111022 in words is "two hundred twenty-one trillion, twelve billion, two hundred twelve million, one hundred eleven thousand, twenty-two".