1210021022011 has 2 divisors, whose sum is σ = 1210021022012. Its totient is φ = 1210021022010.

The previous prime is 1210021021991. The next prime is 1210021022101. The reversal of 1210021022011 is 1102201200121.

Together with next prime (1210021022101) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1210021022011 - 2³¹ = 1207873538363 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210021021982 and 1210021022000.

It is not a weakly prime, because it can be changed into another prime (1210021023011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605010511005 + 605010511006.

It is an arithmetic number, because the mean of its divisors is an integer number (605010511006).

Almost surely, 2^{1210021022011} is an apocalyptic number.

1210021022011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210021022011 is an equidigital number, since it uses as much as digits as its factorization.

1210021022011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1210021022011 its reverse (1102201200121), we get a palindrome (2312222222132).

The spelling of 1210021022011 in words is "one trillion, two hundred ten billion, twenty-one million, twenty-two thousand, eleven".