221020002111102 has 32 divisors (see below), whose sum is σ = 467741420881920. Its totient is φ = 69430367148480.

The previous prime is 221020002111023. The next prime is 221020002111109. The reversal of 221020002111102 is 201111200020122.

It is a super-3 number, since 3×221020002111102³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221020002111109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5075297463 + ... + 5075341010.

It is an arithmetic number, because the mean of its divisors is an integer number (14616919402560).

Almost surely, 2^{221020002111102} is an apocalyptic number.

221020002111102 is an abundant number, since it is smaller than the sum of its proper divisors (246721418770818).

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

221020002111102 is a wasteful number, since it uses less digits than its factorization.

221020002111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10150638688.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221020002111102 its reverse (201111200020122), we get a palindrome (422131202131224).

The spelling of 221020002111102 in words is "two hundred twenty-one trillion, twenty billion, two million, one hundred eleven thousand, one hundred two".