1200212021101 has 8 divisors (see below), whose sum is σ = 1202363435520. Its totient is φ = 1198061180688.

The previous prime is 1200212021087. The next prime is 1200212021251. The reversal of 1200212021101 is 1011202120021.

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 1200212021101 - 2¹⁵ = 1200211988333 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 (1200212028101) 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, 4157295 + ... + 4436611.

It is an arithmetic number, because the mean of its divisors is an integer number (150295429440).

Almost surely, 2^{1200212021101} is an apocalyptic number.

It is an amenable number.

1200212021101 is a deficient number, since it is larger than the sum of its proper divisors (2151414419).

1200212021101 is an equidigital number, since it uses as much as digits as its factorization.

1200212021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287003.

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

Adding to 1200212021101 its reverse (1011202120021), we get a palindrome (2211414141122).

The spelling of 1200212021101 in words is "one trillion, two hundred billion, two hundred twelve million, twenty-one thousand, one hundred one".