1223121023010 has 64 divisors (see below), whose sum is σ = 3261913401600. Its totient is φ = 326139872256.

The previous prime is 1223121023009. The next prime is 1223121023021. The reversal of 1223121023010 is 103201213221.

1223121023010 is a `hidden beast` number, since 1 + 223 + 1 + 210 + 230 + 1 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3380802 + ... + 3725058.

It is an arithmetic number, because the mean of its divisors is an integer number (50967396900).

Almost surely, 2^{1223121023010} is an apocalyptic number.

1223121023010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223121023010 is an abundant number, since it is smaller than the sum of its proper divisors (2038792378590).

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

1223121023010 is a wasteful number, since it uses less digits than its factorization.

1223121023010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357432 (or 357426 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1223121023010 its reverse (103201213221), we get a palindrome (1326322236231).

The spelling of 1223121023010 in words is "one trillion, two hundred twenty-three billion, one hundred twenty-one million, twenty-three thousand, ten".