1211020020222 has 32 divisors (see below), whose sum is σ = 2426845836672. Its totient is φ = 402873083424.

The previous prime is 1211020020187. The next prime is 1211020020227. The reversal of 1211020020222 is 2220200201121.

It is a super-3 number, since 3×1211020020222³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211020020227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6829933 + ... + 7004999.

It is an arithmetic number, because the mean of its divisors is an integer number (75838932396).

Almost surely, 2^{1211020020222} is an apocalyptic number.

1211020020222 is an abundant number, since it is smaller than the sum of its proper divisors (1215825816450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211020020222 is a wasteful number, since it uses less digits than its factorization.

1211020020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177352.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1211020020222 its reverse (2220200201121), we get a palindrome (3431220221343).

The spelling of 1211020020222 in words is "one trillion, two hundred eleven billion, twenty million, twenty thousand, two hundred twenty-two".