1212002121101 has 8 divisors (see below), whose sum is σ = 1224121538304. Its totient is φ = 1199885045200.

The previous prime is 1212002121067. The next prime is 1212002121103. The reversal of 1212002121101 is 1011212002121.

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 1212002121101 - 2³⁰ = 1210928379277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212002121103) 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, 464540 + ... + 1624746.

It is an arithmetic number, because the mean of its divisors is an integer number (153015192288).

Almost surely, 2^{1212002121101} is an apocalyptic number.

It is an amenable number.

1212002121101 is a deficient number, since it is larger than the sum of its proper divisors (12119417203).

1212002121101 is a wasteful number, since it uses less digits than its factorization.

1212002121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170651.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212002121101 its reverse (1011212002121), we get a palindrome (2223214123222).

It can be divided in two parts, 1212002121 and 101, that multiplied together give a palindrome (122412214221).

The spelling of 1212002121101 in words is "one trillion, two hundred twelve billion, two million, one hundred twenty-one thousand, one hundred one".