1220211020001 has 8 divisors (see below), whose sum is σ = 1683049682880. Its totient is φ = 785423185232.

The previous prime is 1220211019999. The next prime is 1220211020011. The reversal of 1220211020001 is 1000201120221.

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 1220211020001 - 2¹ = 1220211019999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220211020011) 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, 7012706925 + ... + 7012707098.

It is an arithmetic number, because the mean of its divisors is an integer number (210381210360).

Almost surely, 2^{1220211020001} is an apocalyptic number.

It is an amenable number.

1220211020001 is a deficient number, since it is larger than the sum of its proper divisors (462838662879).

1220211020001 is a wasteful number, since it uses less digits than its factorization.

1220211020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14025414055.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1220211020001 its reverse (1000201120221), we get a palindrome (2220412140222).

The spelling of 1220211020001 in words is "one trillion, two hundred twenty billion, two hundred eleven million, twenty thousand, one".