61001211221076 has 48 divisors (see below), whose sum is σ = 163840183646720. Its totient is φ = 17303529592800.

The previous prime is 61001211221033. The next prime is 61001211221077. The reversal of 61001211221076 is 67012211210016.

It is a super-2 number, since 2×61001211221076² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61001211221077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2612236150 + ... + 2612259501.

Almost surely, 2^{61001211221076} is an apocalyptic number.

It is an amenable number.

61001211221076 is an abundant number, since it is smaller than the sum of its proper divisors (102838972425644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61001211221076 is a wasteful number, since it uses less digits than its factorization.

61001211221076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5224495804 (or 5224495802 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The spelling of 61001211221076 in words is "sixty-one trillion, one billion, two hundred eleven million, two hundred twenty-one thousand, seventy-six".