1061221299 has 8 divisors (see below), whose sum is σ = 1432872960. Its totient is φ = 698525256.

The previous prime is 1061221283. The next prime is 1061221303. The reversal of 1061221299 is 9921221601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1061221299 - 2⁴ = 1061221283 is a prime.

It is a super-2 number, since 2×1061221299² = 2252381290902494802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061221229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2238627 + ... + 2239100.

It is an arithmetic number, because the mean of its divisors is an integer number (179109120).

Almost surely, 2^1061221299 is an apocalyptic number.

1061221299 is a deficient number, since it is larger than the sum of its proper divisors (371651661).

1061221299 is an equidigital number, since it uses as much as digits as its factorization.

1061221299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4477809.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 1061221299 is about 32576.3917431013. The cubic root of 1061221299 is about 1020.0042608434.

The spelling of 1061221299 in words is "one billion, sixty-one million, two hundred twenty-one thousand, two hundred ninety-nine".