1020222121011 has 16 divisors (see below), whose sum is σ = 1376081045280. Its totient is φ = 672261201920.

The previous prime is 1020222121003. The next prime is 1020222121013. The reversal of 1020222121011 is 1101212220201.

It is a cyclic number.

It is not a de Polignac number, because 1020222121011 - 2³ = 1020222121003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020222121013) 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, 41071 + ... + 1429031.

It is an arithmetic number, because the mean of its divisors is an integer number (86005065330).

Almost surely, 2^{1020222121011} is an apocalyptic number.

1020222121011 is a deficient number, since it is larger than the sum of its proper divisors (355858924269).

1020222121011 is a wasteful number, since it uses less digits than its factorization.

1020222121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390806.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1020222121011 its reverse (1101212220201), we get a palindrome (2121434341212).

The spelling of 1020222121011 in words is "one trillion, twenty billion, two hundred twenty-two million, one hundred twenty-one thousand, eleven".