1222020211001 has 4 divisors (see below), whose sum is σ = 1222141321104. Its totient is φ = 1221899100900.

The previous prime is 1222020210977. The next prime is 1222020211003. The reversal of 1222020211001 is 1001120202221.

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 a de Polignac number, because none of the positive numbers 2^k-1222020211001 is a prime.

It is a super-2 number, since 2×1222020211001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222020211003) 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, 60539915 + ... + 60560096.

It is an arithmetic number, because the mean of its divisors is an integer number (305535330276).

Almost surely, 2^{1222020211001} is an apocalyptic number.

It is an amenable number.

1222020211001 is a deficient number, since it is larger than the sum of its proper divisors (121110103).

1222020211001 is a wasteful number, since it uses less digits than its factorization.

1222020211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121110102.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1222020211001 its reverse (1001120202221), we get a palindrome (2223140413222).

The spelling of 1222020211001 in words is "one trillion, two hundred twenty-two billion, twenty million, two hundred eleven thousand, one".