1210121300200 has 48 divisors (see below), whose sum is σ = 2814170194080. Its totient is φ = 483938727360.

The previous prime is 1210121300197. The next prime is 1210121300203. The reversal of 1210121300200 is 20031210121.

It is an interprime number because it is at equal distance from previous prime (1210121300197) and next prime (1210121300203).

It is a super-2 number, since 2×1210121300200² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1210121300203) 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, 200607 + ... + 1568593.

It is an arithmetic number, because the mean of its divisors is an integer number (58628545710).

Almost surely, 2^{1210121300200} is an apocalyptic number.

1210121300200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210121300200 is an abundant number, since it is smaller than the sum of its proper divisors (1604048893880).

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

1210121300200 is a wasteful number, since it uses less digits than its factorization.

1210121300200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372426 (or 1372417 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1210121300200 its reverse (20031210121), we get a palindrome (1230152510321).

The spelling of 1210121300200 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, three hundred thousand, two hundred".