1022123252 has 6 divisors (see below), whose sum is σ = 1788715698. Its totient is φ = 511061624.

The previous prime is 1022123233. The next prime is 1022123273. The reversal of 1022123252 is 2523212201.

It can be written as a sum of positive squares in only one way, i.e., 676312036 + 345811216 = 26006^2 + 18596^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127765403 + ... + 127765410.

It is an arithmetic number, because the mean of its divisors is an integer number (298119283).

Almost surely, 2^1022123252 is an apocalyptic number.

It is an amenable number.

1022123252 is a deficient number, since it is larger than the sum of its proper divisors (766592446).

1022123252 is a wasteful number, since it uses less digits than its factorization.

1022123252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255530817 (or 255530815 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1022123252 is about 31970.6623641113. The cubic root of 1022123252 is about 1007.3206939945.

Adding to 1022123252 its reverse (2523212201), we get a palindrome (3545335453).

The spelling of 1022123252 in words is "one billion, twenty-two million, one hundred twenty-three thousand, two hundred fifty-two".