20100221111102 has 32 divisors (see below), whose sum is σ = 33021497371104. Its totient is φ = 9100294963200.

The previous prime is 20100221111101. The next prime is 20100221111123. The reversal of 20100221111102 is 20111112200102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100221111101) 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, 88841402 + ... + 89067362.

It is an arithmetic number, because the mean of its divisors is an integer number (1031921792847).

Almost surely, 2^{20100221111102} is an apocalyptic number.

20100221111102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20100221111102 is a deficient number, since it is larger than the sum of its proper divisors (12921276260002).

20100221111102 is a wasteful number, since it uses less digits than its factorization.

20100221111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241964.

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

Adding to 20100221111102 its reverse (20111112200102), we get a palindrome (40211333311204).

The spelling of 20100221111102 in words is "twenty trillion, one hundred billion, two hundred twenty-one million, one hundred eleven thousand, one hundred two".