1200222121051 has 2 divisors, whose sum is σ = 1200222121052. Its totient is φ = 1200222121050.

The previous prime is 1200222120989. The next prime is 1200222121069. The reversal of 1200222121051 is 1501212220021.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1501212220021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1200222121051 - 2¹¹ = 1200222119003 is a prime.

It is a super-2 number, since 2×1200222121051² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1200222122051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600111060525 + 600111060526.

It is an arithmetic number, because the mean of its divisors is an integer number (600111060526).

Almost surely, 2^{1200222121051} is an apocalyptic number.

1200222121051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200222121051 is an equidigital number, since it uses as much as digits as its factorization.

1200222121051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 1200222121051 its reverse (1501212220021), we get a palindrome (2701434341072).

The spelling of 1200222121051 in words is "one trillion, two hundred billion, two hundred twenty-two million, one hundred twenty-one thousand, fifty-one".