101000222212221 has 32 divisors (see below), whose sum is σ = 157681506435840. Its totient is φ = 63768256200000.

The previous prime is 101000222212217. The next prime is 101000222212291. The reversal of 101000222212221 is 122212222000101.

It is a happy number.

101000222212221 is a `hidden beast` number, since 1 + 0 + 10 + 0 + 0 + 222 + 212 + 221 = 666.

It is not a de Polignac number, because 101000222212221 - 2² = 101000222212217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101000222212194 and 101000222212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101000222212291) 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, 805092030 + ... + 805217471.

It is an arithmetic number, because the mean of its divisors is an integer number (4927547076120).

Almost surely, 2^{101000222212221} is an apocalyptic number.

It is an amenable number.

101000222212221 is a deficient number, since it is larger than the sum of its proper divisors (56681284223619).

101000222212221 is a wasteful number, since it uses less digits than its factorization.

101000222212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610309634 (or 1610309628 counting only the distinct ones).

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

Adding to 101000222212221 its reverse (122212222000101), we get a palindrome (223212444212322).

The spelling of 101000222212221 in words is "one hundred one trillion, two hundred twenty-two million, two hundred twelve thousand, two hundred twenty-one".