221111201001102 has 16 divisors (see below), whose sum is σ = 452506643909760. Its totient is φ = 71989693349112.

The previous prime is 221111201001101. The next prime is 221111201001143. The reversal of 221111201001102 is 201100102111122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221111201001101) 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, 428510079202 + ... + 428510079717.

It is an arithmetic number, because the mean of its divisors is an integer number (28281665244360).

Almost surely, 2^{221111201001102} is an apocalyptic number.

221111201001102 is an abundant number, since it is smaller than the sum of its proper divisors (231395442908658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221111201001102 is a wasteful number, since it uses less digits than its factorization.

221111201001102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857020158967.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 221111201001102 its reverse (201100102111122), we get a palindrome (422211303112224).

The spelling of 221111201001102 in words is "two hundred twenty-one trillion, one hundred eleven billion, two hundred one million, one thousand, one hundred two".