101221210022111 has 8 divisors (see below), whose sum is σ = 101453335845264. Its totient is φ = 100989100576000.

The previous prime is 101221210022089. The next prime is 101221210022131. The reversal of 101221210022111 is 111220012122101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101221210022111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101221210022111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221210022131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8324405 + ... + 16484481.

It is an arithmetic number, because the mean of its divisors is an integer number (12681666980658).

Almost surely, 2^{101221210022111} is an apocalyptic number.

101221210022111 is a deficient number, since it is larger than the sum of its proper divisors (232125823153).

101221210022111 is an equidigital number, since it uses as much as digits as its factorization.

101221210022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8188521.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 101221210022111 its reverse (111220012122101), we get a palindrome (212441222144212).

The spelling of 101221210022111 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred ten million, twenty-two thousand, one hundred eleven".