1210012120200 has 192 divisors, whose sum is σ = 4084969795200. Its totient is φ = 294502348800.

The previous prime is 1210012120193. The next prime is 1210012120279. The reversal of 1210012120200 is 20212100121.

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 47 ways as a sum of consecutive naturals, for example, 177316 + ... + 1565715.

It is an arithmetic number, because the mean of its divisors is an integer number (21275884350).

Almost surely, 2^{1210012120200} is an apocalyptic number.

1210012120200 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 1210012120200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2042484897600).

1210012120200 is an abundant number, since it is smaller than the sum of its proper divisors (2874957675000).

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

1210012120200 is a wasteful number, since it uses less digits than its factorization.

1210012120200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743152 (or 1743143 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1210012120200 its reverse (20212100121), we get a palindrome (1230224220321).

The spelling of 1210012120200 in words is "one trillion, two hundred ten billion, twelve million, one hundred twenty thousand, two hundred".