1223223001541 has 8 divisors (see below), whose sum is σ = 1240944494400. Its totient is φ = 1205589895840.

The previous prime is 1223223001537. The next prime is 1223223001543. The reversal of 1223223001541 is 1451003223221.

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 1223223001541 - 2² = 1223223001537 is a prime.

It is a super-2 number, since 2×1223223001541² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223223001541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223223001543) 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, 22068911 + ... + 22124268.

It is an arithmetic number, because the mean of its divisors is an integer number (155118061800).

Almost surely, 2^{1223223001541} is an apocalyptic number.

It is an amenable number.

1223223001541 is a deficient number, since it is larger than the sum of its proper divisors (17721492859).

1223223001541 is an equidigital number, since it uses as much as digits as its factorization.

1223223001541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44193579.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 1223223001541 its reverse (1451003223221), we get a palindrome (2674226224762).

The spelling of 1223223001541 in words is "one trillion, two hundred twenty-three billion, two hundred twenty-three million, one thousand, five hundred forty-one".