120205412211145 has 16 divisors (see below), whose sum is σ = 149192141091840. Its totient is φ = 92879421048000.

The previous prime is 120205412211109. The next prime is 120205412211197. The reversal of 120205412211145 is 541112214502021.

It is a happy number.

It is not a de Polignac number, because 120205412211145 - 2¹⁵ = 120205412178377 is a prime.

It is a super-2 number, since 2×120205412211145² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 761727381 + ... + 761885170.

It is an arithmetic number, because the mean of its divisors is an integer number (9324508818240).

Almost surely, 2^{120205412211145} is an apocalyptic number.

It is an amenable number.

120205412211145 is a deficient number, since it is larger than the sum of its proper divisors (28986728880695).

120205412211145 is a wasteful number, since it uses less digits than its factorization.

120205412211145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523613096.

The product of its (nonzero) digits is 6400, while the sum is 31.

Adding to 120205412211145 its reverse (541112214502021), we get a palindrome (661317626713166).

The spelling of 120205412211145 in words is "one hundred twenty trillion, two hundred five billion, four hundred twelve million, two hundred eleven thousand, one hundred forty-five".