102111220323100 has 18 divisors (see below), whose sum is σ = 221581348101344. Its totient is φ = 40844488129200.

The previous prime is 102111220323083. The next prime is 102111220323107. The reversal of 102111220323100 is 1323022111201.

It is a super-2 number, since 2×102111220323100² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102111220323107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510556101516 + ... + 510556101715.

Almost surely, 2^{102111220323100} is an apocalyptic number.

102111220323100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102111220323100 is an abundant number, since it is smaller than the sum of its proper divisors (119470127778244).

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

102111220323100 is a wasteful number, since it uses less digits than its factorization.

102111220323100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021112203245 (or 1021112203238 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 102111220323100 its reverse (1323022111201), we get a palindrome (103434242434301).

The spelling of 102111220323100 in words is "one hundred two trillion, one hundred eleven billion, two hundred twenty million, three hundred twenty-three thousand, one hundred".