1201441245542 has 16 divisors (see below), whose sum is σ = 1826897783712. Its totient is φ = 592475757120.

The previous prime is 1201441245523. The next prime is 1201441245551. The reversal of 1201441245542 is 2455421441021.

It is a happy number.

It is a super-2 number, since 2×1201441245542² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6909128 + ... + 7080884.

It is an arithmetic number, because the mean of its divisors is an integer number (114181111482).

Almost surely, 2^{1201441245542} is an apocalyptic number.

1201441245542 is a deficient number, since it is larger than the sum of its proper divisors (625456538170).

1201441245542 is a wasteful number, since it uses less digits than its factorization.

1201441245542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219743.

The product of its (nonzero) digits is 51200, while the sum is 35.

Adding to 1201441245542 its reverse (2455421441021), we get a palindrome (3656862686563).

The spelling of 1201441245542 in words is "one trillion, two hundred one billion, four hundred forty-one million, two hundred forty-five thousand, five hundred forty-two".