1213300021101 has 16 divisors (see below), whose sum is σ = 1848976354944. Its totient is φ = 693262462464.

The previous prime is 1213300021099. The next prime is 1213300021103. The reversal of 1213300021101 is 1011200033121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1213300021099) and next prime (1213300021103).

It is not a de Polignac number, because 1213300021101 - 2¹ = 1213300021099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213300021103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1871340 + ... + 2434853.

It is an arithmetic number, because the mean of its divisors is an integer number (115561022184).

Almost surely, 2^{1213300021101} is an apocalyptic number.

It is an amenable number.

1213300021101 is a deficient number, since it is larger than the sum of its proper divisors (635676333843).

1213300021101 is a wasteful number, since it uses less digits than its factorization.

1213300021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319620.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1213300021101 its reverse (1011200033121), we get a palindrome (2224500054222).

The spelling of 1213300021101 in words is "one trillion, two hundred thirteen billion, three hundred million, twenty-one thousand, one hundred one".