1201221200130 has 96 divisors (see below), whose sum is σ = 3358569894336. Its totient is φ = 274159057536.

The previous prime is 1201221200093. The next prime is 1201221200167. The reversal of 1201221200130 is 310021221021.

It is an interprime number because it is at equal distance from previous prime (1201221200093) and next prime (1201221200167).

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 391677 + ... + 1598703.

It is an arithmetic number, because the mean of its divisors is an integer number (34985103066).

Almost surely, 2^{1201221200130} is an apocalyptic number.

1201221200130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201221200130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1679284947168).

1201221200130 is an abundant number, since it is smaller than the sum of its proper divisors (2157348694206).

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

1201221200130 is a wasteful number, since it uses less digits than its factorization.

1201221200130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207728 (or 1207721 counting only the distinct ones).

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

Adding to 1201221200130 its reverse (310021221021), we get a palindrome (1511242421151).

The spelling of 1201221200130 in words is "one trillion, two hundred one billion, two hundred twenty-one million, two hundred thousand, one hundred thirty".