1202121012001 has 32 divisors (see below), whose sum is σ = 1489449443328. Its totient is φ = 944775144000.

The previous prime is 1202121011983. The next prime is 1202121012041. The reversal of 1202121012001 is 1002101212021.

It is a cyclic number.

It is not a de Polignac number, because 1202121012001 - 2¹⁷ = 1202120880929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (1202121012041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8232376 + ... + 8377126.

It is an arithmetic number, because the mean of its divisors is an integer number (46545295104).

Almost surely, 2^{1202121012001} is an apocalyptic number.

It is an amenable number.

1202121012001 is a deficient number, since it is larger than the sum of its proper divisors (287328431327).

1202121012001 is a wasteful number, since it uses less digits than its factorization.

1202121012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145381.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1202121012001 its reverse (1002101212021), we get a palindrome (2204222224022).

The spelling of 1202121012001 in words is "one trillion, two hundred two billion, one hundred twenty-one million, twelve thousand, one".