101201222221 has 8 divisors (see below), whose sum is σ = 110979353088. Its totient is φ = 91519428000.

The previous prime is 101201222153. The next prime is 101201222231. The reversal of 101201222221 is 122222102101.

It is a happy number.

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

It is not a de Polignac number, because 101201222221 - 2⁷ = 101201222093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101201222195 and 101201222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101201222231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24081960 + ... + 24086161.

It is an arithmetic number, because the mean of its divisors is an integer number (13872419136).

Almost surely, 2^101201222221 is an apocalyptic number.

101201222221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101201222221 is a deficient number, since it is larger than the sum of its proper divisors (9778130867).

101201222221 is a wasteful number, since it uses less digits than its factorization.

101201222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48168323.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 101201222221 its reverse (122222102101), we get a palindrome (223423324322).

The spelling of 101201222221 in words is "one hundred one billion, two hundred one million, two hundred twenty-two thousand, two hundred twenty-one".