1022202120545 has 16 divisors (see below), whose sum is σ = 1237679436240. Its totient is φ = 810405894144.

The previous prime is 1022202120529. The next prime is 1022202120581. The reversal of 1022202120545 is 5450212022201.

It can be written as a sum of positive squares in 8 ways, for example, as 358135221136 + 664066899409 = 598444^2 + 814903^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022202120545 - 2⁴ = 1022202120529 is a prime.

It is a super-2 number, since 2×1022202120545² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3824021 + ... + 4082589.

It is an arithmetic number, because the mean of its divisors is an integer number (77354964765).

Almost surely, 2^{1022202120545} is an apocalyptic number.

It is an amenable number.

1022202120545 is a deficient number, since it is larger than the sum of its proper divisors (215477315695).

1022202120545 is a wasteful number, since it uses less digits than its factorization.

1022202120545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265684.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 1022202120545 its reverse (5450212022201), we get a palindrome (6472414142746).

The spelling of 1022202120545 in words is "one trillion, twenty-two billion, two hundred two million, one hundred twenty thousand, five hundred forty-five".