1222121020001 has 8 divisors (see below), whose sum is σ = 1397793308160. Its totient is φ = 1046719624608.

The previous prime is 1222121019989. The next prime is 1222121020007. The reversal of 1222121020001 is 1000201212221.

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

It is not a de Polignac number, because 1222121020001 - 2¹⁸ = 1222120757857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222121020007) 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, 67713521 + ... + 67731566.

It is an arithmetic number, because the mean of its divisors is an integer number (174724163520).

Almost surely, 2^{1222121020001} is an apocalyptic number.

It is an amenable number.

1222121020001 is a deficient number, since it is larger than the sum of its proper divisors (175672288159).

1222121020001 is a wasteful number, since it uses less digits than its factorization.

1222121020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135446383.

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

Adding to 1222121020001 its reverse (1000201212221), we get a palindrome (2222322232222).

The spelling of 1222121020001 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-one million, twenty thousand, one".