1000021222211 has 16 divisors (see below), whose sum is σ = 1091798362368. Its totient is φ = 908388751200.

The previous prime is 1000021222201. The next prime is 1000021222231. The reversal of 1000021222211 is 1122221200001.

It is a cyclic number.

It is not a de Polignac number, because 1000021222211 - 2³⁴ = 982841353027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000021222201) 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, 115033181 + ... + 115041873.

It is an arithmetic number, because the mean of its divisors is an integer number (68237397648).

Almost surely, 2^{1000021222211} is an apocalyptic number.

1000021222211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1000021222211 is a deficient number, since it is larger than the sum of its proper divisors (91777140157).

1000021222211 is a wasteful number, since it uses less digits than its factorization.

1000021222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15802.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1000021222211 its reverse (1122221200001), we get a palindrome (2122242422212).

The spelling of 1000021222211 in words is "one trillion, twenty-one million, two hundred twenty-two thousand, two hundred eleven".