1022152121 has 8 divisors (see below), whose sum is σ = 1059973824. Its totient is φ = 984867120.

The previous prime is 1022152073. The next prime is 1022152123. The reversal of 1022152121 is 1212512201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022152121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1022152121.

It is not an unprimeable number, because it can be changed into a prime (1022152123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130295 + ... + 137916.

It is an arithmetic number, because the mean of its divisors is an integer number (132496728).

Almost surely, 2^1022152121 is an apocalyptic number.

It is an amenable number.

1022152121 is a deficient number, since it is larger than the sum of its proper divisors (37821703).

1022152121 is a wasteful number, since it uses less digits than its factorization.

1022152121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268351.

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

The square root of 1022152121 is about 31971.1138529767. The cubic root of 1022152121 is about 1007.3301775434.

Adding to 1022152121 its reverse (1212512201), we get a palindrome (2234664322).

The spelling of 1022152121 in words is "one billion, twenty-two million, one hundred fifty-two thousand, one hundred twenty-one".