1223312021010 has 64 divisors (see below), whose sum is σ = 3272021112960. Its totient is φ = 325230966720.

The previous prime is 1223312020969. The next prime is 1223312021059. The reversal of 1223312021010 is 101202133221.

1223312021010 is a `hidden beast` number, since 122 + 331 + 2 + 0 + 210 + 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, 6754717 + ... + 6933456.

It is an arithmetic number, because the mean of its divisors is an integer number (51125329890).

Almost surely, 2^{1223312021010} is an apocalyptic number.

1223312021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223312021010 is an abundant number, since it is smaller than the sum of its proper divisors (2048709091950).

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

1223312021010 is a wasteful number, since it uses less digits than its factorization.

1223312021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13688520 (or 13688514 counting only the distinct ones).

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

Adding to 1223312021010 its reverse (101202133221), we get a palindrome (1324514154231).

The spelling of 1223312021010 in words is "one trillion, two hundred twenty-three billion, three hundred twelve million, twenty-one thousand, ten".