121213203311222 has 16 divisors (see below), whose sum is σ = 208788292785600. Its totient is φ = 52197073196040.

The previous prime is 121213203311201. The next prime is 121213203311227. The reversal of 121213203311222 is 222113302312121.

It is a super-2 number, since 2×121213203311222² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121213203311191 and 121213203311200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121213203311227) 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, 144991869572 + ... + 144991870407.

It is an arithmetic number, because the mean of its divisors is an integer number (13049268299100).

Almost surely, 2^{121213203311222} is an apocalyptic number.

121213203311222 is a deficient number, since it is larger than the sum of its proper divisors (87575089474378).

121213203311222 is a wasteful number, since it uses less digits than its factorization.

121213203311222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289983740011.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 121213203311222 its reverse (222113302312121), we get a palindrome (343326505623343).

The spelling of 121213203311222 in words is "one hundred twenty-one trillion, two hundred thirteen billion, two hundred three million, three hundred eleven thousand, two hundred twenty-two".