121200001022 has 8 divisors (see below), whose sum is σ = 185668086816. Its totient is φ = 59310638752.

The previous prime is 121200001019. The next prime is 121200001033. The reversal of 121200001022 is 220100002121.

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 = 121200000994 and 121200001012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644680763 + ... + 644680950.

It is an arithmetic number, because the mean of its divisors is an integer number (23208510852).

Almost surely, 2^121200001022 is an apocalyptic number.

121200001022 is a deficient number, since it is larger than the sum of its proper divisors (64468085794).

121200001022 is a wasteful number, since it uses less digits than its factorization.

121200001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289361762.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 121200001022 its reverse (220100002121), we get a palindrome (341300003143).

The spelling of 121200001022 in words is "one hundred twenty-one billion, two hundred million, one thousand, twenty-two".