121022221202211 has 32 divisors (see below), whose sum is σ = 189400370418688. Its totient is φ = 67285998138240.

The previous prime is 121022221202209. The next prime is 121022221202213. The reversal of 121022221202211 is 112202122220121.

It is an interprime number because it is at equal distance from previous prime (121022221202209) and next prime (121022221202213).

It is not a de Polignac number, because 121022221202211 - 2¹ = 121022221202209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121022221202213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124504866 + ... + 125473128.

It is an arithmetic number, because the mean of its divisors is an integer number (5918761575584).

Almost surely, 2^{121022221202211} is an apocalyptic number.

121022221202211 is a deficient number, since it is larger than the sum of its proper divisors (68378149216477).

121022221202211 is a wasteful number, since it uses less digits than its factorization.

121022221202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129171.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121022221202211 its reverse (112202122220121), we get a palindrome (233224343422332).

The spelling of 121022221202211 in words is "one hundred twenty-one trillion, twenty-two billion, two hundred twenty-one million, two hundred two thousand, two hundred eleven".