101111012102100 has 1296 divisors, whose sum is σ = 421958734537536. Its totient is φ = 18373049856000.

The previous prime is 101111012102047. The next prime is 101111012102101. The reversal of 101111012102100 is 1201210111101.

It is a super-2 number, since 2×101111012102100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101111012102101) by changing a digit.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 758791480 + ... + 758924720.

It is an arithmetic number, because the mean of its divisors is an integer number (325585443316).

Almost surely, 2^{101111012102100} is an apocalyptic number.

101111012102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101111012102100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210979367268768).

101111012102100 is an abundant number, since it is smaller than the sum of its proper divisors (320847722435436).

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

101111012102100 is a wasteful number, since it uses less digits than its factorization.

101111012102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133334 (or 133301 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 101111012102100 its reverse (1201210111101), we get a palindrome (102312222213201).

The spelling of 101111012102100 in words is "one hundred one trillion, one hundred eleven billion, twelve million, one hundred two thousand, one hundred".