101021002221222 has 64 divisors (see below), whose sum is σ = 237706261848000. Its totient is φ = 31691558638080.

The previous prime is 101021002221221. The next prime is 101021002221289. The reversal of 101021002221222 is 222122200120101.

It is a happy number.

101021002221222 is a `hidden beast` number, since 1 + 0 + 10 + 210 + 0 + 2 + 221 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 101021002221195 and 101021002221204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101021002221221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20165404 + ... + 24671552.

It is an arithmetic number, because the mean of its divisors is an integer number (3714160341375).

Almost surely, 2^{101021002221222} is an apocalyptic number.

101021002221222 is an abundant number, since it is smaller than the sum of its proper divisors (136685259626778).

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

101021002221222 is a wasteful number, since it uses less digits than its factorization.

101021002221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4530598 (or 4530592 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 101021002221222 its reverse (222122200120101), we get a palindrome (323143202341323).

The spelling of 101021002221222 in words is "one hundred one trillion, twenty-one billion, two million, two hundred twenty-one thousand, two hundred twenty-two".