1021222101211 has 8 divisors (see below), whose sum is σ = 1123177172544. Its totient is φ = 922609819200.

The previous prime is 1021222101187. The next prime is 1021222101241. The reversal of 1021222101211 is 1121012221201.

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

It is a cyclic number.

It is not a de Polignac number, because 1021222101211 - 2¹³ = 1021222093019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021222101241) 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, 835696690 + ... + 835697911.

It is an arithmetic number, because the mean of its divisors is an integer number (140397146568).

Almost surely, 2^{1021222101211} is an apocalyptic number.

1021222101211 is a deficient number, since it is larger than the sum of its proper divisors (101955071333).

1021222101211 is a wasteful number, since it uses less digits than its factorization.

1021222101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671394661.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1021222101211 its reverse (1121012221201), we get a palindrome (2142234322412).

The spelling of 1021222101211 in words is "one trillion, twenty-one billion, two hundred twenty-two million, one hundred one thousand, two hundred eleven".