1202001222121 has 8 divisors (see below), whose sum is σ = 1374080190080. Its totient is φ = 1030013381088.

The previous prime is 1202001222119. The next prime is 1202001222181. The reversal of 1202001222121 is 1212221002021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1202001222121 - 2¹ = 1202001222119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202001222095 and 1202001222104.

It is not an unprimeable number, because it can be changed into a prime (1202001222181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22753461 + ... + 22806226.

It is an arithmetic number, because the mean of its divisors is an integer number (171760023760).

Almost surely, 2^{1202001222121} is an apocalyptic number.

It is an amenable number.

1202001222121 is a deficient number, since it is larger than the sum of its proper divisors (172078967959).

1202001222121 is an equidigital number, since it uses as much as digits as its factorization.

1202001222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45563463.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1202001222121 its reverse (1212221002021), we get a palindrome (2414222224142).

The spelling of 1202001222121 in words is "one trillion, two hundred two billion, one million, two hundred twenty-two thousand, one hundred twenty-one".