1202121001200 has 120 divisors (see below), whose sum is σ = 4400907772288. Its totient is φ = 274770512640.

The previous prime is 1202121001181. The next prime is 1202121001219. The reversal of 1202121001200 is 21001212021.

It is an interprime number because it is at equal distance from previous prime (1202121001181) and next prime (1202121001219).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 71546422 + ... + 71563221.

Almost surely, 2^{1202121001200} is an apocalyptic number.

1202121001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202121001200 is an abundant number, since it is smaller than the sum of its proper divisors (3198786771088).

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

1202121001200 is a wasteful number, since it uses less digits than its factorization.

1202121001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143109671 (or 143109660 counting only the distinct ones).

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

Adding to 1202121001200 its reverse (21001212021), we get a palindrome (1223122213221).

The spelling of 1202121001200 in words is "one trillion, two hundred two billion, one hundred twenty-one million, one thousand, two hundred".