221011202021102 has 8 divisors (see below), whose sum is σ = 331517012233800. Its totient is φ = 110505531276504.

The previous prime is 221011202021059. The next prime is 221011202021107. The reversal of 221011202021102 is 201120202110122.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221011202021107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30810977 + ... + 37300652.

It is an arithmetic number, because the mean of its divisors is an integer number (41439626529225).

Almost surely, 2^{221011202021102} is an apocalyptic number.

221011202021102 is a deficient number, since it is larger than the sum of its proper divisors (110505810212698).

221011202021102 is a wasteful number, since it uses less digits than its factorization.

221011202021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69734050.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221011202021102 its reverse (201120202110122), we get a palindrome (422131404131224).

The spelling of 221011202021102 in words is "two hundred twenty-one trillion, eleven billion, two hundred two million, twenty-one thousand, one hundred two".