121211202022 has 8 divisors (see below), whose sum is σ = 181850532696. Its totient is φ = 60594357792.

The previous prime is 121211201971. The next prime is 121211202023. The reversal of 121211202022 is 220202112121.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 121211201987 and 121211202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121211202023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5608128 + ... + 5629699.

It is an arithmetic number, because the mean of its divisors is an integer number (22731316587).

Almost surely, 2^121211202022 is an apocalyptic number.

121211202022 is a deficient number, since it is larger than the sum of its proper divisors (60639330674).

121211202022 is a wasteful number, since it uses less digits than its factorization.

121211202022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11243222.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121211202022 its reverse (220202112121), we get a palindrome (341413314143).

The spelling of 121211202022 in words is "one hundred twenty-one billion, two hundred eleven million, two hundred two thousand, twenty-two".