1221012132023 has 8 divisors (see below), whose sum is σ = 1276975698048. Its totient is φ = 1165288239544.

The previous prime is 1221012132017. The next prime is 1221012132079. The reversal of 1221012132023 is 3202312101221.

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

It is a cyclic number.

It is not a de Polignac number, because 1221012132023 - 2⁴ = 1221012132007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1221012131986 and 1221012132004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221012132013) 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, 59907965 + ... + 59928342.

It is an arithmetic number, because the mean of its divisors is an integer number (159621962256).

Almost surely, 2^{1221012132023} is an apocalyptic number.

1221012132023 is a deficient number, since it is larger than the sum of its proper divisors (55963566025).

1221012132023 is a wasteful number, since it uses less digits than its factorization.

1221012132023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119836773.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1221012132023 its reverse (3202312101221), we get a palindrome (4423324233244).

The spelling of 1221012132023 in words is "one trillion, two hundred twenty-one billion, twelve million, one hundred thirty-two thousand, twenty-three".