1022100205 has 16 divisors (see below), whose sum is σ = 1403700480. Its totient is φ = 699887232.

The previous prime is 1022100199. The next prime is 1022100253. The reversal of 1022100205 is 5020012201.

It is a cyclic number.

It is not a de Polignac number, because 1022100205 - 2¹⁷ = 1021969133 is a prime.

It is a super-2 number, since 2×1022100205² = 2089377658122084050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5361 + ... + 45529.

It is an arithmetic number, because the mean of its divisors is an integer number (87731280).

Almost surely, 2^1022100205 is an apocalyptic number.

It is an amenable number.

1022100205 is a deficient number, since it is larger than the sum of its proper divisors (381600275).

1022100205 is an equidigital number, since it uses as much as digits as its factorization.

1022100205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40908.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1022100205 is about 31970.3019222528. The cubic root of 1022100205 is about 1007.3131228611.

Adding to 1022100205 its reverse (5020012201), we get a palindrome (6042112406).

The spelling of 1022100205 in words is "one billion, twenty-two million, one hundred thousand, two hundred five".