1221024101051 has 2 divisors, whose sum is σ = 1221024101052. Its totient is φ = 1221024101050.

The previous prime is 1221024101009. The next prime is 1221024101119. The reversal of 1221024101051 is 1501014201221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1221024101051 - 2²² = 1221019906747 is a prime.

It is not a weakly prime, because it can be changed into another prime (1221024101651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610512050525 + 610512050526.

It is an arithmetic number, because the mean of its divisors is an integer number (610512050526).

Almost surely, 2^{1221024101051} is an apocalyptic number.

1221024101051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1221024101051 is an equidigital number, since it uses as much as digits as its factorization.

1221024101051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 1221024101051 its reverse (1501014201221), we get a palindrome (2722038302272).

The spelling of 1221024101051 in words is "one trillion, two hundred twenty-one billion, twenty-four million, one hundred one thousand, fifty-one".