1123212021010 has 8 divisors (see below), whose sum is σ = 2021781637836. Its totient is φ = 449284808400.

The previous prime is 1123212020981. The next prime is 1123212021017. The reversal of 1123212021010 is 101202123211.

It can be written as a sum of positive squares in 2 ways, for example, as 918889036569 + 204322984441 = 958587^2 + 452021^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1123212021017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56160601041 + ... + 56160601060.

Almost surely, 2^{1123212021010} is an apocalyptic number.

1123212021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123212021010 is a deficient number, since it is larger than the sum of its proper divisors (898569616826).

1123212021010 is a wasteful number, since it uses less digits than its factorization.

1123212021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112321202108.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1123212021010 its reverse (101202123211), we get a palindrome (1224414144221).

The spelling of 1123212021010 in words is "one trillion, one hundred twenty-three billion, two hundred twelve million, twenty-one thousand, ten".