1012221120001 has 8 divisors (see below), whose sum is σ = 1245810609344. Its totient is φ = 800878248720.

The previous prime is 1012221119939. The next prime is 1012221120011. The reversal of 1012221120001 is 1000211222101.

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 1012221120001 - 2¹³ = 1012221111809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (1012221120011) 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, 5561654415 + ... + 5561654596.

It is an arithmetic number, because the mean of its divisors is an integer number (155726326168).

Almost surely, 2^{1012221120001} is an apocalyptic number.

It is an amenable number.

1012221120001 is a deficient number, since it is larger than the sum of its proper divisors (233589489343).

1012221120001 is a wasteful number, since it uses less digits than its factorization.

1012221120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11123309031.

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

Adding to 1012221120001 its reverse (1000211222101), we get a palindrome (2012432342102).

The spelling of 1012221120001 in words is "one trillion, twelve billion, two hundred twenty-one million, one hundred twenty thousand, one".