1020055211 has 8 divisors (see below), whose sum is σ = 1174677504. Its totient is φ = 867657960.

The previous prime is 1020055187. The next prime is 1020055213. The reversal of 1020055211 is 1125500201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020055211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020055211.

It is not an unprimeable number, because it can be changed into a prime (1020055213) 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, 555275 + ... + 557108.

It is an arithmetic number, because the mean of its divisors is an integer number (146834688).

Almost surely, 2^1020055211 is an apocalyptic number.

1020055211 is a deficient number, since it is larger than the sum of its proper divisors (154622293).

1020055211 is a wasteful number, since it uses less digits than its factorization.

1020055211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112521.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 1020055211 is about 31938.3031953797. The cubic root of 1020055211 is about 1006.6408715352.

Adding to 1020055211 its reverse (1125500201), we get a palindrome (2145555412).

The spelling of 1020055211 in words is "one billion, twenty million, fifty-five thousand, two hundred eleven".