221060371412 has 24 divisors (see below), whose sum is σ = 407746369800. Its totient is φ = 104705234816.

The previous prime is 221060371393. The next prime is 221060371423. The reversal of 221060371412 is 214173060122.

It can be written as a sum of positive squares in 4 ways, for example, as 11695557316 + 209364814096 = 108146^2 + 457564^2 .

It is a super-2 number, since 2×221060371412² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

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, 17972087 + ... + 17984382.

It is an arithmetic number, because the mean of its divisors is an integer number (16989432075).

Almost surely, 2^221060371412 is an apocalyptic number.

It is an amenable number.

221060371412 is a deficient number, since it is larger than the sum of its proper divisors (186685998388).

221060371412 is a wasteful number, since it uses less digits than its factorization.

221060371412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35956555 (or 35956553 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The spelling of 221060371412 in words is "two hundred twenty-one billion, sixty million, three hundred seventy-one thousand, four hundred twelve".