1202233121000 has 32 divisors (see below), whose sum is σ = 2813225505480. Its totient is φ = 480893248000.

The previous prime is 1202233120987. The next prime is 1202233121041. The reversal of 1202233121000 is 1213322021.

It can be written as a sum of positive squares in 4 ways, for example, as 83728052164 + 1118505068836 = 289358^2 + 1057594^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1202233121000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601115561 + ... + 601117560.

Almost surely, 2^{1202233121000} is an apocalyptic number.

1202233121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202233121000 is an abundant number, since it is smaller than the sum of its proper divisors (1610992384480).

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

1202233121000 is a wasteful number, since it uses less digits than its factorization.

1202233121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202233142 (or 1202233128 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1202233121000 its reverse (1213322021), we get a palindrome (1203446443021).

The spelling of 1202233121000 in words is "one trillion, two hundred two billion, two hundred thirty-three million, one hundred twenty-one thousand".