202111221221102 has 8 divisors (see below), whose sum is σ = 303167027460000. Its totient is φ = 101055545401104.

The previous prime is 202111221221101. The next prime is 202111221221111. The reversal of 202111221221102 is 201122122111202.

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 (202111221221101) 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, 28633727 + ... + 34987322.

It is an arithmetic number, because the mean of its divisors is an integer number (37895878432500).

Almost surely, 2^{202111221221102} is an apocalyptic number.

202111221221102 is a deficient number, since it is larger than the sum of its proper divisors (101055806238898).

202111221221102 is a wasteful number, since it uses less digits than its factorization.

202111221221102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65209450.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 202111221221102 its reverse (201122122111202), we get a palindrome (403233343332304).

The spelling of 202111221221102 in words is "two hundred two trillion, one hundred eleven billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred two".