61223301217111 has 4 divisors (see below), whose sum is σ = 66789055873224. Its totient is φ = 55657546561000.

The previous prime is 61223301217103. The next prime is 61223301217129. The reversal of 61223301217111 is 11171210332216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61223301217111 - 2³ = 61223301217103 is a prime.

It is a super-2 number, since 2×61223301217111² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61223305217111) 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, 2782877328040 + ... + 2782877328061.

It is an arithmetic number, because the mean of its divisors is an integer number (16697263968306).

Almost surely, 2^{61223301217111} is an apocalyptic number.

61223301217111 is a deficient number, since it is larger than the sum of its proper divisors (5565754656113).

61223301217111 is a wasteful number, since it uses less digits than its factorization.

61223301217111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5565754656112.

The product of its (nonzero) digits is 3024, while the sum is 31.

Adding to 61223301217111 its reverse (11171210332216), we get a palindrome (72394511549327).

The spelling of 61223301217111 in words is "sixty-one trillion, two hundred twenty-three billion, three hundred one million, two hundred seventeen thousand, one hundred eleven".