1201012232100 has 288 divisors, whose sum is σ = 3628832323200. Its totient is φ = 306309427200.

The previous prime is 1201012232087. The next prime is 1201012232113. The reversal of 1201012232100 is 12322101021.

It is an interprime number because it is at equal distance from previous prime (1201012232087) and next prime (1201012232113).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1201012232100.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 420373872 + ... + 420376728.

Almost surely, 2^{1201012232100} is an apocalyptic number.

1201012232100 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 1201012232100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1814416161600).

1201012232100 is an abundant number, since it is smaller than the sum of its proper divisors (2427820091100).

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

1201012232100 is a wasteful number, since it uses less digits than its factorization.

1201012232100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3343 (or 3336 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1201012232100 its reverse (12322101021), we get a palindrome (1213334333121).

The spelling of 1201012232100 in words is "one trillion, two hundred one billion, twelve million, two hundred thirty-two thousand, one hundred".