1101213001021 has 8 divisors (see below), whose sum is σ = 1270075283840. Its totient is φ = 935237253168.

The previous prime is 1101213000991. The next prime is 1101213001073. The reversal of 1101213001021 is 1201003121011.

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 1101213001021 - 2¹³ = 1101212992829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101213000992 and 1101213001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101213001321) 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, 721632921 + ... + 721634446.

It is an arithmetic number, because the mean of its divisors is an integer number (158759410480).

Almost surely, 2^{1101213001021} is an apocalyptic number.

It is an amenable number.

1101213001021 is a deficient number, since it is larger than the sum of its proper divisors (168862282819).

1101213001021 is a wasteful number, since it uses less digits than its factorization.

1101213001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443267483.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1101213001021 its reverse (1201003121011), we get a palindrome (2302216122032).

The spelling of 1101213001021 in words is "one trillion, one hundred one billion, two hundred thirteen million, one thousand, twenty-one".