1211222020202 has 8 divisors (see below), whose sum is σ = 1818131700000. Its totient is φ = 605178120204.

The previous prime is 1211222020199. The next prime is 1211222020231. The reversal of 1211222020202 is 2020202221121.

It is a happy number.

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

It is a super-2 number, since 2×1211222020202² (a number of 25 digits) contains 22 as substring.

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, 216441452 + ... + 216447047.

It is an arithmetic number, because the mean of its divisors is an integer number (227266462500).

Almost surely, 2^{1211222020202} is an apocalyptic number.

1211222020202 is a deficient number, since it is larger than the sum of its proper divisors (606909679798).

1211222020202 is a wasteful number, since it uses less digits than its factorization.

1211222020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432889900.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1211222020202 its reverse (2020202221121), we get a palindrome (3231424241323).

The spelling of 1211222020202 in words is "one trillion, two hundred eleven billion, two hundred twenty-two million, twenty thousand, two hundred two".