1212122010200 has 96 divisors (see below), whose sum is σ = 2827532307600. Its totient is φ = 483241820160.

The previous prime is 1212122010193. The next prime is 1212122010251. The reversal of 1212122010200 is 20102212121.

It is a super-2 number, since 2×1212122010200² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282609656 + ... + 282613944.

Almost surely, 2^{1212122010200} is an apocalyptic number.

1212122010200 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 1212122010200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1413766153800).

1212122010200 is an abundant number, since it is smaller than the sum of its proper divisors (1615410297400).

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

1212122010200 is a wasteful number, since it uses less digits than its factorization.

1212122010200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8661 (or 8652 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1212122010200 its reverse (20102212121), we get a palindrome (1232224222321).

The spelling of 1212122010200 in words is "one trillion, two hundred twelve billion, one hundred twenty-two million, ten thousand, two hundred".