1202213121001 has 16 divisors (see below), whose sum is σ = 1219609440000. Its totient is φ = 1184963528016.

The previous prime is 1202213120993. The next prime is 1202213121017. The reversal of 1202213121001 is 1001213122021.

It is a cyclic number.

It is not a de Polignac number, because 1202213121001 - 2³ = 1202213120993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202213151001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15362310 + ... + 15440368.

It is an arithmetic number, because the mean of its divisors is an integer number (76225590000).

Almost surely, 2^{1202213121001} is an apocalyptic number.

It is an amenable number.

1202213121001 is a deficient number, since it is larger than the sum of its proper divisors (17396318999).

1202213121001 is a wasteful number, since it uses less digits than its factorization.

1202213121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78996.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1202213121001 its reverse (1001213122021), we get a palindrome (2203426243022).

The spelling of 1202213121001 in words is "one trillion, two hundred two billion, two hundred thirteen million, one hundred twenty-one thousand, one".