1010212121100 has 432 divisors, whose sum is σ = 3760619700768. Its totient is φ = 207381565440.

The previous prime is 1010212121071. The next prime is 1010212121117. The reversal of 1010212121100 is 11212120101.

1010212121100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1010212121100² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6999264 + ... + 7142136.

Almost surely, 2^{1010212121100} is an apocalyptic number.

1010212121100 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 1010212121100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1880309850384).

1010212121100 is an abundant number, since it is smaller than the sum of its proper divisors (2750407579668).

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

1010212121100 is a wasteful number, since it uses less digits than its factorization.

1010212121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142954 (or 142940 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1010212121100 its reverse (11212120101), we get a palindrome (1021424241201).

Subtracting from 1010212121100 its reverse (11212120101), we obtain a palindrome (999000000999).

The spelling of 1010212121100 in words is "one trillion, ten billion, two hundred twelve million, one hundred twenty-one thousand, one hundred".