1220510022001 has 4 divisors (see below), whose sum is σ = 1284747391600. Its totient is φ = 1156272652404.

The previous prime is 1220510021989. The next prime is 1220510022041. The reversal of 1220510022001 is 1002200150221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1220510022001 - 2²¹ = 1220507924849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220510022041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32118684771 + ... + 32118684808.

It is an arithmetic number, because the mean of its divisors is an integer number (321186847900).

Almost surely, 2^{1220510022001} is an apocalyptic number.

It is an amenable number.

1220510022001 is a deficient number, since it is larger than the sum of its proper divisors (64237369599).

1220510022001 is an equidigital number, since it uses as much as digits as its factorization.

1220510022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64237369598.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 1220510022001 its reverse (1002200150221), we get a palindrome (2222710172222).

The spelling of 1220510022001 in words is "one trillion, two hundred twenty billion, five hundred ten million, twenty-two thousand, one".