101202111221 has 8 divisors (see below), whose sum is σ = 101602335744. Its totient is φ = 100802260240.

The previous prime is 101202111191. The next prime is 101202111247. The reversal of 101202111221 is 122111202101.

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

It is a cyclic number.

It is not a de Polignac number, because 101202111221 - 2²² = 101197916917 is a prime.

It is a super-2 number, since 2×101202111221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101202111196 and 101202111205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101202111281) 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, 455900 + ... + 640506.

It is an arithmetic number, because the mean of its divisors is an integer number (12700291968).

Almost surely, 2^101202111221 is an apocalyptic number.

It is an amenable number.

101202111221 is a deficient number, since it is larger than the sum of its proper divisors (400224523).

101202111221 is a wasteful number, since it uses less digits than its factorization.

101202111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186771.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101202111221 its reverse (122111202101), we get a palindrome (223313313322).

The spelling of 101202111221 in words is "one hundred one billion, two hundred two million, one hundred eleven thousand, two hundred twenty-one".