1011021220207 has 2 divisors, whose sum is σ = 1011021220208. Its totient is φ = 1011021220206.

The previous prime is 1011021220193. The next prime is 1011021220229. The reversal of 1011021220207 is 7020221201101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011021220207 - 2¹⁵ = 1011021187439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011021220607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505510610103 + 505510610104.

It is an arithmetic number, because the mean of its divisors is an integer number (505510610104).

Almost surely, 2^{1011021220207} is an apocalyptic number.

1011021220207 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011021220207 is an equidigital number, since it uses as much as digits as its factorization.

1011021220207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 1011021220207 its reverse (7020221201101), we get a palindrome (8031242421308).

The spelling of 1011021220207 in words is "one trillion, eleven billion, twenty-one million, two hundred twenty thousand, two hundred seven".