101021012221222 has 4 divisors (see below), whose sum is σ = 151531518331836. Its totient is φ = 50510506110610.

The previous prime is 101021012221219. The next prime is 101021012221301. The reversal of 101021012221222 is 222122210120101.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 101021012221222.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 25255253055304 + ... + 25255253055307.

It is an arithmetic number, because the mean of its divisors is an integer number (37882879582959).

Almost surely, 2^{101021012221222} is an apocalyptic number.

101021012221222 is a deficient number, since it is larger than the sum of its proper divisors (50510506110614).

101021012221222 is an equidigital number, since it uses as much as digits as its factorization.

101021012221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50510506110613.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 101021012221222 its reverse (222122210120101), we get a palindrome (323143222341323).

The spelling of 101021012221222 in words is "one hundred one trillion, twenty-one billion, twelve million, two hundred twenty-one thousand, two hundred twenty-two".