1212021200101 has 8 divisors (see below), whose sum is σ = 1279178055200. Its totient is φ = 1145200971600.

The previous prime is 1212021200099. The next prime is 1212021200113. The reversal of 1212021200101 is 1010021202121.

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 1212021200101 - 2¹ = 1212021200099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212021200161) 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, 84149250 + ... + 84163651.

It is an arithmetic number, because the mean of its divisors is an integer number (159897256900).

Almost surely, 2^{1212021200101} is an apocalyptic number.

It is an amenable number.

1212021200101 is a deficient number, since it is larger than the sum of its proper divisors (67156855099).

1212021200101 is a wasteful number, since it uses less digits than its factorization.

1212021200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168313299.

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

Adding to 1212021200101 its reverse (1010021202121), we get a palindrome (2222042402222).

The spelling of 1212021200101 in words is "one trillion, two hundred twelve billion, twenty-one million, two hundred thousand, one hundred one".