1022201001251 has 2 divisors, whose sum is σ = 1022201001252. Its totient is φ = 1022201001250.

The previous prime is 1022201001209. The next prime is 1022201001317. The reversal of 1022201001251 is 1521001022201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1022201001251 - 2²⁶ = 1022133892387 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022201801251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511100500625 + 511100500626.

It is an arithmetic number, because the mean of its divisors is an integer number (511100500626).

Almost surely, 2^{1022201001251} is an apocalyptic number.

1022201001251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022201001251 is an equidigital number, since it uses as much as digits as its factorization.

1022201001251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 1022201001251 its reverse (1521001022201), we get a palindrome (2543202023452).

The spelling of 1022201001251 in words is "one trillion, twenty-two billion, two hundred one million, one thousand, two hundred fifty-one".