1122152020 has 24 divisors (see below), whose sum is σ = 2570748768. Its totient is φ = 408055200.

The previous prime is 1122151993. The next prime is 1122152023. The reversal of 1122152020 is 202512211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1122151985 and 1122152003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122152023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2550126 + ... + 2550565.

It is an arithmetic number, because the mean of its divisors is an integer number (107114532).

Almost surely, 2^1122152020 is an apocalyptic number.

1122152020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122152020 is an abundant number, since it is smaller than the sum of its proper divisors (1448596748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122152020 is a wasteful number, since it uses less digits than its factorization.

1122152020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5100711 (or 5100709 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1122152020 is about 33498.5375800198. The cubic root of 1122152020 is about 1039.1635347640.

Adding to 1122152020 its reverse (202512211), we get a palindrome (1324664231).

The spelling of 1122152020 in words is "one billion, one hundred twenty-two million, one hundred fifty-two thousand, twenty".