1022001021047 has 2 divisors, whose sum is σ = 1022001021048. Its totient is φ = 1022001021046.

The previous prime is 1022001020987. The next prime is 1022001021071. The reversal of 1022001021047 is 7401201002201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1022001021047 - 2¹⁸ = 1022000758903 is a prime.

It is a super-2 number, since 2×1022001021047² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022001021347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511000510523 + 511000510524.

It is an arithmetic number, because the mean of its divisors is an integer number (511000510524).

Almost surely, 2^{1022001021047} is an apocalyptic number.

1022001021047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022001021047 is an equidigital number, since it uses as much as digits as its factorization.

1022001021047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 1022001021047 its reverse (7401201002201), we get a palindrome (8423202023248).

The spelling of 1022001021047 in words is "one trillion, twenty-two billion, one million, twenty-one thousand, forty-seven".