1201021070 has 32 divisors (see below), whose sum is σ = 2204564256. Its totient is φ = 470966400.

The previous prime is 1201021069. The next prime is 1201021111. The reversal of 1201021070 is 701201021.

It is a super-2 number, since 2×1201021070² = 2884903221167889800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190265 + ... + 196475.

It is an arithmetic number, because the mean of its divisors is an integer number (68892633).

Almost surely, 2^1201021070 is an apocalyptic number.

1201021070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201021070 is a deficient number, since it is larger than the sum of its proper divisors (1003543186).

1201021070 is a wasteful number, since it uses less digits than its factorization.

1201021070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6596.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 1201021070 is about 34655.7508936107. The cubic root of 1201021070 is about 1062.9598861764.

Adding to 1201021070 its reverse (701201021), we get a palindrome (1902222091).

The spelling of 1201021070 in words is "one billion, two hundred one million, twenty-one thousand, seventy".