1220020190 has 32 divisors (see below), whose sum is σ = 2322190080. Its totient is φ = 460742400.

The previous prime is 1220020189. The next prime is 1220020199. The reversal of 1220020190 is 910200221.

It is a super-2 number, since 2×1220020190² = 2976898528015272200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220020199) 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, 35285 + ... + 60704.

It is an arithmetic number, because the mean of its divisors is an integer number (72568440).

Almost surely, 2^1220020190 is an apocalyptic number.

1220020190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220020190 is a deficient number, since it is larger than the sum of its proper divisors (1102169890).

1220020190 is a wasteful number, since it uses less digits than its factorization.

1220020190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96068.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1220020190 is about 34928.7874109595. The cubic root of 1220020190 is about 1068.5356245468.

The spelling of 1220020190 in words is "one billion, two hundred twenty million, twenty thousand, one hundred ninety".