1012221212001 has 8 divisors (see below), whose sum is σ = 1352928108960. Its totient is φ = 673164228192.

The previous prime is 1012221211993. The next prime is 1012221212003. The reversal of 1012221212001 is 1002121222101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1012221212001 - 2³ = 1012221211993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012221212003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412476855 + ... + 412479308.

It is an arithmetic number, because the mean of its divisors is an integer number (169116013620).

Almost surely, 2^{1012221212001} is an apocalyptic number.

It is an amenable number.

1012221212001 is a deficient number, since it is larger than the sum of its proper divisors (340706896959).

1012221212001 is an equidigital number, since it uses as much as digits as its factorization.

1012221212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824956575.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1012221212001 its reverse (1002121222101), we get a palindrome (2014342434102).

The spelling of 1012221212001 in words is "one trillion, twelve billion, two hundred twenty-one million, two hundred twelve thousand, one".