1061221156162 has 16 divisors (see below), whose sum is σ = 1603513099872. Its totient is φ = 526717090080.

The previous prime is 1061221156157. The next prime is 1061221156183. The reversal of 1061221156162 is 2616511221601.

It is a super-3 number, since 3×1061221156162³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9008413 + ... + 9125455.

It is an arithmetic number, because the mean of its divisors is an integer number (100219568742).

Almost surely, 2^{1061221156162} is an apocalyptic number.

1061221156162 is a deficient number, since it is larger than the sum of its proper divisors (542291943710).

1061221156162 is a wasteful number, since it uses less digits than its factorization.

1061221156162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150273.

The product of its (nonzero) digits is 8640, while the sum is 34.

Adding to 1061221156162 its reverse (2616511221601), we get a palindrome (3677732377763).

The spelling of 1061221156162 in words is "one trillion, sixty-one billion, two hundred twenty-one million, one hundred fifty-six thousand, one hundred sixty-two".