1012201210100 has 36 divisors (see below), whose sum is σ = 2312080663200. Its totient is φ = 383570984160.

The previous prime is 1012201210091. The next prime is 1012201210103. The reversal of 1012201210100 is 10121022101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012201210103) 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, 266366840 + ... + 266370639.

Almost surely, 2^{1012201210100} is an apocalyptic number.

1012201210100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012201210100 is an abundant number, since it is smaller than the sum of its proper divisors (1299879453100).

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

1012201210100 is a wasteful number, since it uses less digits than its factorization.

1012201210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532737512 (or 532737505 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1012201210100 its reverse (10121022101), we get a palindrome (1022322232201).

The spelling of 1012201210100 in words is "one trillion, twelve billion, two hundred one million, two hundred ten thousand, one hundred".