1010121010100 has 36 divisors (see below), whose sum is σ = 2219708971200. Its totient is φ = 398933864160.

The previous prime is 1010121010097. The next prime is 1010121010109. The reversal of 1010121010100 is 10101210101.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010121010109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63923810 + ... + 63939609.

Almost surely, 2^{1010121010100} is an apocalyptic number.

1010121010100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010121010100 is an abundant number, since it is smaller than the sum of its proper divisors (1209587961100).

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

1010121010100 is a wasteful number, since it uses less digits than its factorization.

1010121010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127863512 (or 127863505 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1010121010100 its reverse (10101210101), we get a palindrome (1020222220201).

1010121010100 divided by its reverse (10101210101) gives a square (100 = 10²).

The spelling of 1010121010100 in words is "one trillion, ten billion, one hundred twenty-one million, ten thousand, one hundred".